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: $600

Buyer's premium:

1993, National Postal Museum, (29c) multicolored, bottom left corner sheet margin plate No.115155 se-tenant block of four, maroon and black (engraved) colors omitted (country name, denomination and background text or pictures), full OG, NH, VF and very rare, a common plate No.111111/A1 block is included, C.v. $2,500, Scott #2782b