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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1965, Alexey Leonov, The First Man Walking in Space, 10k, two perforated sheets of 40 (4×10) in light or dark ultra shades, both are unfolded, but with minor marginal flaws, full OG, NH, mainly VF, Est. $150-$200 , Sc. #3015, var