[Panama] 1930 Lakehurst-Friedrichshafen return flight (Michel 68Ga), card addressed to Germany franked with 50¢ Panama postage cancelled Panama City (15 May) and U.S. 65¢ Zeppelin (C13) tied by New York duplex (27 May), U.S. and German flight cachets and Friedrichshafen receiver (6 June) with Havana transit postmark (18 May) on reverse; small nick at bottom of card, Very Fine. Michel €1,800 ($1,940) Estimate 1,000 - 1,500
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