Huge drop hammers work day and night forming sheet metal parts for United Nations bombers and fighters at the North American Aviation, Inc., plant, Inglewood, Calif. The heavy hemp rope is used to snub the hammer so that it forms the part under proper pressure and rises clear of the work after each operation. This plant produces the battle-tested B-25 ("Billy Mitchell") bomber, used in General Doolittle's raid on Tokyo, and the P-51 ("Mustang") fighter plane which was first brought into prominence by the British raid on Dieppe

WWII color photographs. Farm Security Administration/Office of War Information Color Photographs from the Library of Congress. The original images are color transparencies ranging in size from 35 mm. to 4x5 inches. Photographers working for the U.S. government's Farm Security Administration (FSA) and later the Office of War Information (OWI) between 1939 and 1944 made approximately 1,600 color photographs that depict life in the United States, including Puerto Rico and the Virgin Islands. The pictures focus on rural areas and farm labor, as well as aspects of World War II mobilization, including factories, railroads, aviation training, and women working.