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

Soviet Union of 1923-40

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Start price: $1,000

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1927, 10th Anniversary of the October Revolution, 7k myrtle green, horizontal imperforate pair, housed on page from a Collection, full OG, NH, VF, C.v. $5,000++, Est. $1,500-$2,000,Scott #376a