Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Danzig - ZEPPELIN FLIGHTS: 1932 (July 31 - August 1), Danzig (Luposta) Return Flight postcard to Germany, franked by complete surcharged air post set of five, green Flight marking, Friedrichshafen machine ''1.8.32'' arrival is alongside, VF, Sieger #170B, €160 without a premium for franking, Est. $100-$150, Sc. # C31-35