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

Monaco

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Start price: $150

Buyer's premium:

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