General Superintendent of the Airmail Service, L.B. Lent, helps to load mail into a Junkers Larsen (JL-6)
aircraft on July 29, 1920. This airplane was one of three flown on a transcontinental pathfinding
flight for the U.S. Post Office Department. It carried some mail, as well as Superintendent Lent and the cameraman, Brockhorst.
The flights helped officials determine the best route of the upcoming transcontinental airmail route between New York,
N.Y., and San Francisco, California. (National Postal Museum, Curatorial Photographic Collection)

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