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: $300

Buyer's premium:

1990, Love, 25c multicolored, top right corner sheet margin imperforate block of four, USPS ad ZIP imprint on top margin, full OG, NH, VF, C.v. $1,100 as two pairs, Scott #2440a