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: $100

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1940, Vladimir Mayakovsky, 60k dark gray blue, a single with comb perforation 12½x12 instead of L12½, raster horizontal diamonds, full OG, VLH, VF, Est. $150-$200 , Sc. #778a