Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 3

Soviet Union

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Start price: $750

Buyer's premium:

1966, Cosmonauts’ Day, 10k multicolored, double impression of gold color variety, unfolded complete sheet of 30 (6×5), full OG, NH, VF and rare, especially in a complete sheet, Est. $1,000-$1,500, Scott #3193 var