Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Germany - Zeppelin Flights - 1933 (May 6-10), 1st SAF cover to Brazil, nicely franked by 14 values, including two North Pole overprints and five positional se-tenants, cancelled on board, blue confirmation cachet and Pernambuco ''9.V.33'' arrival ds, VF and rare franking, Sieger #202, Est. $250-$300, Scott #C28/32, C40-41