Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 3

Soviet Union Stamps of 1924-40

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Start price: $200

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1940, Vladimir Mayakovsky, 80k light ultra, top right margin vertical pair with perforation L12½, imperforated at top, full OG, NH (light trace of hinge on margin in 15mm from upper stamp), VF and scarce, Est. $300-$400 , Sc. #779 var