Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Danzig - Zeppelin Flight - 1933 (May 6-10), 1st SAF cover from Danzig to Brazil, mixed franking of 5 Danzig (one - on reverse) and 1 German stamps, red Berlin-Friedrichshafen connection, blue confirmation cachet and Rio de Janeiro ''10.MAI.33'' arrival marking, VF, Sieger #202 var, Est. $300-$350, Scott #C27/30