Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Brazil - Pioneer Flights - 1931-37, 6 covers, Dornier Do X Flying Boat Europe - South America Flight of 1931, two Zeppelin Flight items of 1934 and 1936, three Condor - Lufthansa Flights to Europe, all appropriate markings, generally F/VF condition, Est. $200-$250