Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Poland - Zeppelin Flights - 1932 (October 9-13), 8th South America Flight registered cover to Brazil, franked by 16 air post values (nine on reverse), cancelled by Warsaw ''3.X.32'' ds, red Berlin- Friedrichshafen connection on front, red flight marking on reverse, Pernambuco ''13X.32'' arrival hs, VF, Sieger #189, Est. $250-$300, Scott #C4-9