Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Great Britain - Zeppelin Flight - 1932 (March 20-23), 1st South America Flight cover to Argentina, franked by King George V 1s bister, red Berlin-Friedrichshafen connection and violet flight cachet, Buenos Aires ''MAR.25.1932'' arrival markings on reverse, mostly VF, Sieger #138, C.v. €500, Est. $300-$350, Scott #200