Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1

United States - Modern Errors and Varieties

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Start price: $150

Buyer's premium:

1982, Ponce de Leon, 20c multicolored, right sheet margin imperforate block of four, USPS imprint on margin, full OG, NH, VF, C.v. $500 as two pairs, Scott #2024a