Ex-USS Alabama (BB-8) Officers pose with gas masks, on the ship’s after deck in September 1921, immediately before the commencement of the bombing tests in which the former USS Alabama was the target. Those present include officers of the U.S. Navy, U.S. Army and a foreign navy (in white uniform, second from left). Most of the gas masks are marked with a numeral 3 at the top, and one has a numeral 4 in that location. Photo from the 1909-1924 album of Vice Admiral Olaf M. Hustvedt, USN (Retired). Courtesy of Rick Hauck, 2006. U.S. Naval History and Heritage Command Photograph. Catalog #: NH 104541
