Worldwide Air Post Stamps and Postal History, One Man Collection of Tannu Tuva, Philatelic Rarities of the World, Part 1
Lot 186:
Description
1983, American Inventors, (20c) x4 multicolored, left margin se-tenant block of six, including two of No.2056 and 2058, all with black engraved color omitted, full OG, NH, VF, C.v. $275 for block of four, Est. $150-$200 , Scott #2058b
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