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

Worldwide Zeppelin Flights - Switzerland

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Start price: $100

Buyer's premium:

1929 (August 1-5), 1st America Flight stationery postcard 10c green to US, uprated by five values, including two air post adhesives, Friedrichshafen ”31.JUL.29” connection, blue Flight cachet, NYC ”AUG.5.29” arrival ds, mostly VF, Sieger #27, €235, Est. $150-$200, Sc. #C4, C11