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: $75

Buyer's premium:

1926, definitive issue, 7k-5r, imperforated complete set of eight on improved white wove paper, 7k-2r with sheet margins, full OG, NH, VF, SC #0120-27, Est. $100 -$150