Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2

Soviet Union 1923-91

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Start price: $100

Buyer's premium:

1936, definitive issue, Lenin 40k indigo, imperforate single with ample to large margins, full OG, NH, VF, C.v. $600, Est. $200-$250, Scott #619b