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

Soviet Union 1923-40

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Start price: $200

Buyer's premium:

1937, definitive issue, factory worker 2k yellow green, complete sheet of 100 printed on paper without watermark, post office fresh quality, full OF NH, VF, C.v. $1,300, Scott #614