History of Aviation, Rare Stamps and Postal History of the World, Part 3

Soviet Union

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Start price: $750

Buyer's premium:

1988, Antarctic Expedition, 20k multicolored, top left corner sheet margin imperforated block of four, nice and post office fresh, full OG, NH, VF and scarce positional piece, Est. $1,200-$1,500 , Sc. #5713 imp