Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1

Worldwide Air Post Stamps and Postal History - Soviet Union

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Start price: $75

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1932, International Polar Year, 50k carmine, perf 12¼, and 1r green, perf 10½, complete set of two, full OG, NH, VF, C.v. $225, Scott #C34-35