Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2
Lot 1271:
REMARKABLE UNIT OF TYPE: 1 1918, violet and black overprints on 80 perforated and imperforate mint and used (50%) stamps in singles, pairs strips and blocks of four, including 3 punched stamps (No.955 not counted), among better: two of 35k with violet and black, 70k with double black, imperfs of 15k and 10r with black overprints and more, occasional flaws possible, full/large part of OG or used, F/VF, C.v. is over $2,350, Est. $800-$900, Bulat #943/129, var
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