Transcribed from attached press release: "HUGHES TEST-PILOTS SECOND XF-11. CULVER CITY, Calif., April 5. Preparatory to making its first flight test today, Howard Hughes, famed flier-industrialist, is shown in the cockpit of the second XF-11 sister ship to the plane in which he almost lost his life in an accident last July 7. Hughes designed and built the ship, one of the world's fastest long-range reconnaissance planes for the Army Air forces in conjunction with the Air Materiel Command engineers."
An image of Parker Dam on the Colorado River at the California-Arizona border, 155 miles downstream from Hoover Dam. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image showing an exterior view of the Parker Dam Theater (per the white sign on the side of the building). Presumed to be located near the state line between California and Arizona, the theater displays a poster for the 1936 musical comedy "Pigskin Parade."