From the Howard Cannon Photograph Collection (PH-00192). Stamped on verso: "Released by: Office of Information Air Force Flight Test Center Edwards Air Force Base Edwards, California".
A section of Howard Hughes' "Spruce Goose" or "Flying Boat" being moved (with a police escort) from the Hughes Aircraft plant in Culver City, California to Terminal Island in the Los Angeles Harbor where the plane was assembled in June of 1946.