By A Mystery Man Writer
On 20 May, scheduled Atlantic service opened, with Capt. La Porte in the Yankee Clipper departing from Port Washington for Marseilles, carrying mail only. La Portes’s flight went smoothly, and all stations and facilities performed well. Because there were large numbers of first day air mail covers on these early flights, an unusual task became necessary.
Pan Am: Jan. 1934
Yankee clipper 1930s hi-res stock photography and images - Alamy
Pan Am Eras: Pioneering Explorations
Pan Am Museum Foundation - On May 20, 1939, Pan American Airways Yankee Clipper, a Boeing 314 Flying Boat departed Port Washington, New York for the first ever scheduled mail service across the Atlantic.
UXC25 - 1991 40c Air Mail Postal Card - Yankee Clipper - Mystic Stamp Company
Yankee Clipper in Forest Hills, Mass] - The Portal to Texas History
Pan Am: Mar.1933
The Story of the Yankee Clipper's Maiden Voyage Across the Atlantic - Ghosts of Baltimore
The Clipper Ships of East Boston (episode 199) - HUB History: Boston history podcast
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