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:

1973, Progress in Electronics, 8c multicolored, left sheet margin single with tan (background) and lilac colors omitted, full OG, NH, VF, only 50 stamps are known to exist, C.v. $600, Scott #1501b