Quick view Details U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.65 Add to Cart Quick view Details U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.95 Add to Cart Quick view Details U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.50 Add to Cart Quick view Details U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MSRP: Now: $28.50 Add to Cart Quick view Details U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MSRP: Now: $8.00 Add to Cart Quick view Details U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $0.85 Add to Cart Quick view Details U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $1.25 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MSRP: Now: $1.20 Add to Cart Quick view Details U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MSRP: Now: $95.00 Add to Cart Quick view Details U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MSRP: Now: $3.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.95 Add to Cart Quick view Details U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.50 Add to Cart Quick view Details U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MSRP: Now: $28.50 Add to Cart Quick view Details U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MSRP: Now: $8.00 Add to Cart Quick view Details U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $0.85 Add to Cart Quick view Details U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $1.25 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MSRP: Now: $1.20 Add to Cart Quick view Details U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MSRP: Now: $95.00 Add to Cart Quick view Details U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MSRP: Now: $3.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.50 Add to Cart Quick view Details U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MSRP: Now: $28.50 Add to Cart Quick view Details U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MSRP: Now: $8.00 Add to Cart Quick view Details U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $0.85 Add to Cart Quick view Details U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $1.25 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MSRP: Now: $1.20 Add to Cart Quick view Details U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MSRP: Now: $95.00 Add to Cart Quick view Details U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MSRP: Now: $3.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MSRP: Now: $28.50 Add to Cart Quick view Details U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MSRP: Now: $8.00 Add to Cart Quick view Details U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $0.85 Add to Cart Quick view Details U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $1.25 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MSRP: Now: $1.20 Add to Cart Quick view Details U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MSRP: Now: $95.00 Add to Cart Quick view Details U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MSRP: Now: $3.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MSRP: Now: $28.50 Add to Cart Quick view Details U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MSRP: Now: $8.00 Add to Cart Quick view Details U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $0.85 Add to Cart Quick view Details U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $1.25 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MSRP: Now: $1.20 Add to Cart Quick view Details U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MSRP: Now: $95.00 Add to Cart Quick view Details U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MSRP: Now: $3.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MSRP: Now: $28.50 Add to Cart Quick view Details U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MSRP: Now: $8.00 Add to Cart Quick view Details U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $0.85 Add to Cart Quick view Details U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $1.25 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MSRP: Now: $1.20 Add to Cart Quick view Details U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MSRP: Now: $95.00 Add to Cart Quick view Details U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MSRP: Now: $3.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MSRP: Now: $8.00 Add to Cart Quick view Details U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $0.85 Add to Cart Quick view Details U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $1.25 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MSRP: Now: $1.20 Add to Cart Quick view Details U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MSRP: Now: $95.00 Add to Cart Quick view Details U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MSRP: Now: $3.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MSRP: Now: $8.00 Add to Cart Quick view Details U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $0.85 Add to Cart Quick view Details U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $1.25 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MSRP: Now: $1.20 Add to Cart Quick view Details U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MSRP: Now: $95.00 Add to Cart Quick view Details U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MSRP: Now: $3.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $0.85 Add to Cart Quick view Details U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $1.25 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MSRP: Now: $1.20 Add to Cart Quick view Details U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MSRP: Now: $95.00 Add to Cart Quick view Details U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MSRP: Now: $3.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MSRP: Now: $1.25 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MSRP: Now: $1.20 Add to Cart Quick view Details U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MSRP: Now: $95.00 Add to Cart Quick view Details U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MSRP: Now: $3.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MSRP: Now: $1.20 Add to Cart Quick view Details U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MSRP: Now: $95.00 Add to Cart Quick view Details U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MSRP: Now: $3.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MSRP: Now: $1.20 Add to Cart Quick view Details U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MSRP: Now: $95.00 Add to Cart Quick view Details U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MSRP: Now: $3.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MSRP: Now: $95.00 Add to Cart Quick view Details U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MSRP: Now: $3.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MSRP: Now: $3.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MSRP: Now: $3.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.00 Add to Cart Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $1.05 Add to Cart Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.10 Add to Cart Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.65 Add to Cart Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 18 1950 6c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.65 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.95 Add to Cart Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 18a 1950 6c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.50 Add to Cart Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 19 1951 6c (Shaded) on 5c (UC14) DC-4 Skymaster, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 20 1951 6c (Shaded) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 21R 1952 6c (Solid) on 5c (UC14) DC-4 Skymaster, Die 1, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $28.50 Add to Cart Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 22 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 22R 1952 6c (Solid) on 5c (UC15) DC-4 Skymaster, Die 2, "Rubber Die" - Mint Envelope, UPSS Size 13 (See Warranty) MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $8.00 Add to Cart Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 25T1 1956 6c FIPEX Exhibition, Type 1 ("Short Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.85 Add to Cart Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 25T2 1956 6c FIPEX Exhibition, Type 2 ("Long Clouds") - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.25 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 26 1958 7c DC-4 Skymaster - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.20 Add to Cart Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 28 1958 6c (UC4N) + 1c Plane, Die 2b, No Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $95.00 Add to Cart Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 30 1958 6c (UC18) + 1c DC-4 Skymaster, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 12 MINT, and in excellent condition. Envelope Size 6 1/2" x 3 5/8". MSRP: Now: $3.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.00 Add to Cart Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 30a 1958 6c (UC18a) + 1c DC-4 Skymaster, Type 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.05 Add to Cart Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 31T1 1958 6c (UC25T1) + 1c FIPEX, Type 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.10 Add to Cart Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 31T2 1958 6c (UC25T2) + 1c FIPEX, Type 2 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.65 Add to Cart Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected
Quick view U.S. Scott # UC 33 1958 7c Jet Airliner, Blue - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $0.80 Add to Cart Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected
