A brief introduction to the workhorse of the early airmail service, the deHavilland DH-4B airplane. Learn more: https://postalmuseum.si.edu/exhibition/airmail-in ...
One gelatin silver print panoramic photograph, 10 x 66 inches; front view of five modified Bellanca de Havilland DH-4 Mailplanes on the ground, with the pilots and related crew standing in front of ...
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