Round the World via Hong Kong first flight cover to U.S. Postmaster General, USA, Netherlands, Straits Settlements, Brazil, 1937
Loan courtesy United States Postal Service, Postmaster General’s Collection
In 1937, Pan American's round-trip flights from the U.S. to the Asian mainland and back closed the final aerial gap in world airmail service. From Hong Kong, the China National Aviation Corporation provided service to 21 Chinese cities. Pan Am held a 45 percent stake in CNAC, an early U.S.-Chinese collaboration.
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