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

Soviet Union

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Start price: $60

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1937, Alexander Pushkin, 50k blue, perforation L12½, block of six (3×2), middle stamp at the top row with a dot between ”5” and ”0” in the value tablet, full OG, NH, VF, Est. $80-$120 , Sc. #593, var