From the Howard Cannon Photograph Collection (PH-00192). Stamped on verso: "USAF Photo". Additional information about titles and affiliations can be found on physical item sleeve. In the United States Air Force Reserve shown together at a meeting of the 9999th Air Reserve Squadron.
Description printed on photograph's accompanying strip of paper: "Hughes' Lockheed plane surrounded by police as it is taken out of the hangar at Le Bourget Field, Paris, for the flight to Moscow. July 1938"