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: $200

Buyer's premium:

1990, Love, 25c multicolored, top right corner sheet margin imperforate block of four, USPS and ZIP imprint at the upper edge, full OG, NH, VF, C.v. $1,100 as two pairs, Est. $350-$400, Scott #2440a