Quick view Details U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MSRP: Now: $1.35 Add to Cart Quick view Details U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MSRP: Now: $52.50 Add to Cart Quick view Details U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MSRP: Now: $1.75 Add to Cart Quick view Details U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MSRP: Now: $1.35 Add to Cart Quick view Details U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MSRP: Now: $5.50 Add to Cart Quick view Details U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $2.00 Add to Cart Quick view Details U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MSRP: Now: $2.50 Add to Cart Quick view Details U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MSRP: Now: $13.50 Add to Cart Quick view Details U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.40 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MSRP: Now: $2.35 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MSRP: Now: $2.75 Add to Cart Quick view Details U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $70.00 Add to Cart Quick view Details U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $4.00 Add to Cart Quick view Details U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.90 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MSRP: Now: $52.50 Add to Cart Quick view Details U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MSRP: Now: $1.75 Add to Cart Quick view Details U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MSRP: Now: $1.35 Add to Cart Quick view Details U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MSRP: Now: $5.50 Add to Cart Quick view Details U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $2.00 Add to Cart Quick view Details U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MSRP: Now: $2.50 Add to Cart Quick view Details U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MSRP: Now: $13.50 Add to Cart Quick view Details U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.40 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MSRP: Now: $2.35 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MSRP: Now: $2.75 Add to Cart Quick view Details U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $70.00 Add to Cart Quick view Details U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $4.00 Add to Cart Quick view Details U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.90 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MSRP: Now: $1.75 Add to Cart Quick view Details U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MSRP: Now: $1.35 Add to Cart Quick view Details U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MSRP: Now: $5.50 Add to Cart Quick view Details U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $2.00 Add to Cart Quick view Details U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MSRP: Now: $2.50 Add to Cart Quick view Details U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MSRP: Now: $13.50 Add to Cart Quick view Details U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.40 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MSRP: Now: $2.35 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MSRP: Now: $2.75 Add to Cart Quick view Details U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $70.00 Add to Cart Quick view Details U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $4.00 Add to Cart Quick view Details U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.90 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MSRP: Now: $1.35 Add to Cart Quick view Details U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MSRP: Now: $5.50 Add to Cart Quick view Details U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $2.00 Add to Cart Quick view Details U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MSRP: Now: $2.50 Add to Cart Quick view Details U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MSRP: Now: $13.50 Add to Cart Quick view Details U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.40 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MSRP: Now: $2.35 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MSRP: Now: $2.75 Add to Cart Quick view Details U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $70.00 Add to Cart Quick view Details U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $4.00 Add to Cart Quick view Details U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.90 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MSRP: Now: $5.50 Add to Cart Quick view Details U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $2.00 Add to Cart Quick view Details U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MSRP: Now: $2.50 Add to Cart Quick view Details U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MSRP: Now: $13.50 Add to Cart Quick view Details U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.40 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MSRP: Now: $2.35 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MSRP: Now: $2.75 Add to Cart Quick view Details U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $70.00 Add to Cart Quick view Details U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $4.00 Add to Cart Quick view Details U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.90 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $2.00 Add to Cart Quick view Details U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MSRP: Now: $2.50 Add to Cart Quick view Details U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MSRP: Now: $13.50 Add to Cart Quick view Details U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.40 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MSRP: Now: $2.35 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MSRP: Now: $2.75 Add to Cart Quick view Details U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $70.00 Add to Cart Quick view Details U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $4.00 Add to Cart Quick view Details U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.90 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MSRP: Now: $2.50 Add to Cart Quick view Details U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MSRP: Now: $13.50 Add to Cart Quick view Details U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.40 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MSRP: Now: $2.35 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MSRP: Now: $2.75 Add to Cart Quick view Details U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $70.00 Add to Cart Quick view Details U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $4.00 Add to Cart Quick view Details U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.90 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MSRP: Now: $13.50 Add to Cart Quick view Details U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.40 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MSRP: Now: $2.35 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MSRP: Now: $2.75 Add to Cart Quick view Details U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $70.00 Add to Cart Quick view Details U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $4.00 Add to Cart Quick view Details U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.90 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $1.40 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MSRP: Now: $2.35 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MSRP: Now: $2.75 Add to Cart Quick view Details U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $70.00 Add to Cart Quick view Details U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $4.00 Add to Cart Quick view Details U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.90 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MSRP: Now: $2.35 Add to Cart Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MSRP: Now: $2.75 Add to Cart Quick view Details U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $70.00 Add to Cart Quick view Details U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $4.00 Add to Cart Quick view Details U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.90 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MSRP: Now: $2.75 Add to Cart Quick view Details U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $70.00 Add to Cart Quick view Details U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $4.00 Add to Cart Quick view Details U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.90 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MSRP: Now: $70.00 Add to Cart Quick view Details U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $4.00 Add to Cart Quick view Details U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.90 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $4.00 Add to Cart Quick view Details U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.90 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MSRP: Now: $0.80 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.90 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 13 MSRP: Now: $0.90 Add to Cart Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MSRP: Now: $3.50 Add to Cart Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view Details U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MSRP: Now: $0.55 Add to Cart 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 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 U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 3 1934 6c Plane, Orange Background, Die 2a, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 4 1942 6c Plane, Orange Background, Die 2b, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $52.50 Add to Cart Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 5N 1944 6c Plane, Orange Background, Die 2c, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $1.75 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.35 Add to Cart Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 6 1942 6c Plane, Orange Background, Die 3, with Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $5.50 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.00 Add to Cart Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 6N 1942 6c Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $2.50 Add to Cart Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 7 1932 8c Plane, Olive green Background, Die 2, with Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $13.50 Add to Cart Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 8 1945 6c on 2c (U429) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $1.40 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 10 MINT, and in excellent condition. Envelope Size 6 1/4" x 3 1/2". MSRP: Now: $2.35 Add to Cart Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 8a 1945 6c on 2c (U429f) Washington, Die 7 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $2.75 Add to Cart Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 9 1945 6c on 2c (U525) Washington, Die 1 - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $70.00 Add to Cart Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 10 1946 5c on 6c (UC3N) Plane, Orange Background, Die 2a, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $4.00 Add to Cart Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 13 1946 5c on 6c (UC6N) Plane, Orange Background, Die 3, NO Border - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.80 Add to Cart Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 15 1946 5c 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: $0.90 Add to Cart Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 15 1946 5c DC-4 Skymaster, Die 2 - Mint Envelope, UPSS Size 23 MINT, and in excellent condition. Envelope Size 9 1/2" x 4 1/8". MSRP: Now: $3.50 Add to Cart Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 1 2 3 Next Compare Selected × OK
Quick view U.S. Scott # UC 17a 1947 5c Postage Stamp Centenary, Flat Press - Mint Envelope, UPSS Size 13 MINT, and in excellent condition. Envelope Size 6 3/4" x 3 3/4". MSRP: Now: $0.55 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 1 2 3 Next 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 1 2 3 Next 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 1 2 3 Next 1 2 3 Next Compare Selected
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 1 2 3 Next 1 2 3 Next Compare Selected
