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

Worldwide Air Post Stamps and Postal History - Russia and Soviet Union

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Start price: $100

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1931, Airship over the Kremlin, 20k pale red, comb perforation 12¼x12, horizontal pair with color permeating due to porous paper, full OG, NH, VF,Scott #C22a var