Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1
Lot 186:
FLIGHTS OF: 1932 (July 30 – October 27), five postcards representing Danzig Flight and 6th, 7th, 8th and 9th SAF of the year, appropriately franked and cancelled at Romanshorn, bearing Friedrichshafen connections, confirmation markings in various colors and arrival ds, mostly VF, Sieger #169, 177, 183, 189, 195, €625 without a premium for franking, Est. $400-$500
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