Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Germany - Zeppelin Flights - 1932 (September 3-7), 5th Return SAF postcard, franked by 3 stamps, on-board cancel ''6.9.32'', appropriate confirmation cachet and Friedrichshafen arrival marking, in addition Return Flight covers from Brazil, Argentina and Paraguay, all housed on pages from a Collection, mostly VF, Sieger #171Ac, 172, 173, 176, C.v. €425