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

Soviet Union 1941-91

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Start price: $150

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1948, Miner’s Day, 30k, 60k and 1r, complete set of three in corner sheet margin block of 30 (6×5), folded once along vertical perforation, full OG, NH, VF, C.v. $600++, Scott #1248-5