Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2
Lot 2099:
TIDY COLLECTION OF TYPE 1 WITH MINOR DUPLICATIONS: 1918, 173 mint and used stamps, singles, pairs, strips and blocks, including 4 values with inverted and 3 with double overprint, imperf 1k with double overprint of types 1 and 4, several trident varieties and more, clean condition, full/part of OG or used, F/VF, C.v. about $550, Bulat #1058/91
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