Worldwide Rare Stamps and Postal History

United States

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Start price: $100

Buyer's premium:

1975, Mariner 10, Venus and Mercury, 10c multicolored, two singles, one has red color omitted, the other one has black engraved color strongly shifted to the bottom, full OG, NH, VF, C.v. $275 for the first item, Sc. #1557a