Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 3
Lot 1393:
FABULOUS GROUP: 1918, 45 mint and used (33) perforated 10r/7k-5r and imperforate 1k-7r, including cancelled stamps on pieces, large strips and two blocks of four, 4 stamps with inverted overprints and 1 tete-beche pair, nice and clean unit, full OG or used, F/VF, ex-Dr. Seichter or Dr. Zelonka, C.v. $2,550, Bulat #1348/68
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