Lot 131:
Worldwide Aerophilately - Macao
Sold for: $3,250
Description
1940, New York World’s Fair, green overprint on 50a red brown, two singles, one has inverted overprint, full OG, NH, VF, an undoubted worldwide air post rarity, only 25 stamps were produced with inverted overprint, expertized by S. Wolf , Sc. #C13 fn
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