Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 1

Worldwide Zeppelin Flights - Brazil

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Start price: $100

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1930 (May 24 – June 6), South America Flight postcard and cover, each one franked by air post semi-official stamps for Zeppelin Flights of 5000r green and 10,000r red, first one sent from Recife (28 MAI) to Friedrichshafen (6.6), the other one – from Rio (24 MAI) to Recife (26 MAI), flight cachet and arrival markings, mostly VF, Sieger #59A, B, Est. $150-$200, Sc. #4CL1-2