1939 Pan Am Transatlantic First Flight Cover Stockholm Sweden to New York USA

Description

Very scarce acceptance flight for Pan Am, Southern Trans-Atlantic crossing.
Sweden was not part of the Pan Am, Fam 18 route system, but air mail was accepted for first flight carriage
Fam 18 FFC, Stockholm, Sweden European feeder flight.
US First Flight Cover Fam 18 Stockholm Sweden to NY via Marseille 1939 Pan Am. Shipped with USPS First Class Package.
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