Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2
Lot 736:
1932, Aviation Pioneers, 5+25s-25+125s, two imperforate complete sets of five, upright and reversed watermark Swastika, the high value 25+125s known only with upright watermark, full OG, previously hinged, VF, C.v. $175 for two imperf set w/o variety, Scott #CB9a-13a, var
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