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

Soviet Union 1923-40

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Start price: $150

Buyer's premium:

1925, definitive issue, 1k-5r, perforated complete set of 23, including both 10k and 2r with perforation 14½x15, printed on watermarked Borders and Rosettes paper, full OG, NH, mostly VF, C.v. $540, Scott #34-25, 313a, 323a