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

Soviet Union 1941-91

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Start price: $300

Buyer's premium:

1990, Capitals of the Soviet Republics, 5k multicolored, imperforate complete set of 13 (Riga and Yerevan do not exist imperf) in left sheet margin horizontal pairs, control signs on selvages, full OG, NH, VF, Est. $600-$700, Scott #5854/68 imp