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:

1991, 700th Anniversary of Switzerland, 50c multicolored, vertical imperforate pair, full OG, NH, VF and scarce item, which is considered to be from a printer’s waste, Scott Errors C.v. $200, Scott #2532 imp