Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 3

Soviet Union Stamps of 1941-91

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Start price: $100

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1957 (November 19), seven stamps commemorating Space Exploration, including K. Tsiolkovsky and the 1st Sputnik, used on registered air mail cover to NYC, backstamped on November 26 at New York, VF, Est. $150-$200 , Sc. #1991, 1992