December 7, 1941. Pearl Harbor, Hawaii. Small boat rescues a seaman from the 31,800-ton USS West Virginia. Note the two men in the superstructure. The USS Tennessee is inboard. View full size. Office of War Information.

June 1942. M-3 tank crews at Fort Knox, Kentucky. View full size. 4x5 Kodachrome transparency by Alfred Palmer, Office of War Information.

October 1942. Metal parts are placed on masonite by this employee before they slide under the multi-ton hydropress at North American Aviation in Inglewood, California. View full size. 4x5 Kodachrome transparency by Alfred Palmer.

September 1942. Students at Washington High School in Los Angeles training for specific contributions to the war effort. Instructor Ralph Angar explains propeller characteristics to students in the aeronautics class. View full size. 4x5 Kodachrome transparency by Alfred Palmer, Office of War Information.

July 1942. "Wiring a junction box on the firewall for the right engine of a B-25 bomber at the North American Aviation plant in Inglewood, California. Forward of this wall will be mounted one of two 1,700-horsepower Wright Whirlwind engines." 4x5 Kodachrome transparency by Alfred Palmer. View full size.

May 1942. Another shot of Marines training with barrage balloons at Parris Island, S.C. View full size. 4x5 Kodachrome transparency by Alfred Palmer.

May 1942. Motor detachment at the New River, North Carolina, Marine base. View full size. 4x5 Kodachrome transparency by Alfred Palmer, O.W.I.

May 1942. Marine transport driver at New River, North Carolina. View full size. 4x5 Kodachrome transparency by Alfred Palmer, Office of War Information.

October 1942. B-25 bomber nose wheel and landing gear assembly at the North American Aviation plant in Inglewood, California. View full size. 4x5 Kodachrome transparency by Alfred Palmer for the Office of War Information.

June 1942. An M-4 tank at Fort Knox, Kentucky. View full size. 4x5 Kodachrome transparency by Alfred Palmer for the Office of War Information.

June 1942. An M-4 tank crew training at Fort Knox, Kentucky. View full size. 4x5 Kodachrome transparency by Alfred Palmer, Office of War Information.

June 1942. Boiler welder at Combustion Engineering in Chattanooga, Tennessee. View full size. 4x5 Kodachrome transparency by Alfred Palmer.

October 1942. "American mothers and sisters, like these women at the Douglas Aircraft Company plant in Long Beach, California, give important help in producing dependable planes for their men at the front." View full size. 4x5 Kodachrome transparency by Alfred Palmer for the Office of War Information.

May 1942. Marines training in barrage balloon technique at Parris Island, South Carolina. View full size. 4x5 Kodachrome transparency by Alfred Palmer.

December 1940. "Industrial buildings in a Massachusetts town, possibly Brockton." View full size. 35mm Kodachrome transparency by Jack Delano.