History of Aviation, Rare Stamps and Postal History of the World, Part 3
Lot 1116:
1976, American Bicentennial, 1.70fr carmine and black, imperforated epreuve de luxe sheet, printed on thickened paper without gum, NH, VF and rare, only a few de luxe sheets were produced, Yvert and Dallay did not mention price for this proof, Est. $250-$300, Sc. #1021 var
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