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:

2011, American Scientists, Forever (44c) multicolored, complete pane of 20 containing 5 horizontal strips of four self-adhesive stamps, strip at the top has die cutting missing on reverse due to misaligned die-cutting mat, otherwise backing paper intact, VF and scarce, C.v. $375, Scott #4544, b