Woman working on an airplane motor at North American Aviation, Inc., plant in Calif.
Picryl description: Public domain historical photo of Second World War, free to use, no copyright restrictions image.
Heavier than Air: From first heavier-than-air manned flights, to a dawn of modern aviation.
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.