History of Aviation, Rare Stamps and Postal History of the World, Part 2
Lot 670:
1954, Austrian State Printing Plant, 1s black and (light red), imperforated single with light red color omitted, nice margins all around, full OG, NH, VF and rare, Dr. Wallner certificate, ANK #1020 PIII, priced -‘-, Est. $500-$600 , Sc. #598
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