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

Soviet Union

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Start price: $200

Buyer's premium:

1925, definitive issue, worker 8k olive brown, litho printing on watermarked Borders and Rosettes paper, ”small head” variety, sheet margin perforated horizontal and imperforate vertical pairs, both with invalidating perforation, full OG, NH, VF, Est. $400- $500, Scott #311 var