Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Russia and Soviet Union - Zeppelin Flight - 1932 (September 26-29), 7th South America Flight postcard to Brazil, franked by four values, tied by Moscow ''20.9.32'' date stamps, Berlin next day transit, Berlin-Friedrichshafen red connection, orange brown confirmation marking and Pernambuco ''29.IX.32'' receiver, mostly VF and scarce, Sieger #183, Est. $500-$600, Scott #C7-8, C23, E2