Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 3

Soviet Union

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Start price: $75

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1937, Alexander Pushkin, 10k and 50k in souvenir sheet on chalk-surfaced paper, five examples, three of which with a dot inside ”o” in ”Pochta” of 10k stamp, all with full OG, NH, VF, C.v. $250++, Scott #596, var