Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1
Lot 149:
Description
1991, 700th Anniversary of Switzerland, 50c multicolored, bottom left corner sheet margin imperforate plate No. A11111 block of four, fold between stamps and margin at left, full OG, NH, VF and scarce item, considered to be from a printer’s waste, Errors Cat. $400++, Est. $400-$450, Scott #2532 imp
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