History of Aviation, Rare Stamps and Postal History of the World, Part 2
Lot 672:
1964, 2nd Parliamentary and Scientific Conference, 1.80s black and emerald, imperforated top right corner sheet margin plate block of four, full OG, NH, VF and very rare positional multiple, ANK #1182U, €1,600 as singles, Est. $400-$500 , Sc. #726 imp
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