Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Germany - Zeppelin Flights - 1932 (September 12-21), 6th Return SAF cover, franked by 2 stamps, including Zeppelin 1m carmine, tied by Berlin ''1.9.32'' ds, appropriate green confirmation cachet and Bahia arrival marking, in addition Return Flight cover from Argentina franked by complete ''Graf Zeppelin 1932'' overprinted set, arranged on pages from a Collection, mostly VF, Sieger #177B, 179, C.v. €365