Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Gibraltar - Zeppelin Flight - 1933 (June 3-6), 2nd South America Flight registered cover to Argentina, franked by three King George V adhesives, tied by oval ''22.MY.1933'' markings, red Berlin-Friedrichshafen connection and green flight markings, Buenos Aires arrival ds on reverse, F/VF, Sieger #214, C.v. €400, Est. $300-$350, Scott #76, 80, 84