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

United States - Modern Errors

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Start price: $500

Buyer's premium:

1978, Carl Sanburg, 13c black and brown, vertical bottom sheet margin pair, lower stamp with brown color completely omitted, at the same time light printing of black color, full OG, NH, VF and rare, especially in transition pair, C.v. $1,750++, Est. $750-$1,000, Sc. # 1731a