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

Soviet Union 1923-91

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Start price: $250

Buyer's premium:

1990, Poultry, 5k-15k, imperforate complete set in bottom right corner margin imperforate blocks of four, two with control signs on lower margin, full OG, NH, VF, Est. $500- $600, Scott #5909-11 imp