Woman working on an airplane motor at North American Aviation, Inc., p...
Picryl description: Public domain historical photo of Second World War, free to use, no copyright restrictions image.
Airplanes - Engines - Aeroplane Motors. Side view of the airplane moto...
Date Taken: 7/23/1918 Photographer: Henry Thew Stephenson Airplanes - Engines
Airplanes - Engines - Aeroplane Motors. End view of the airplane motor...
Photographer: Henry Thew Stephenson Airplanes - Engines Public domain photograph of aircraft engine, free to use, no copyright restrictions image - Picryl description
Auto conversion to airplane engines. "We'll be turning out as many air...
Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.
Students working on airplane motor at civilian pilot training school. ...
Picryl description: Public domain image of an aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.
Women in war. Supercharger plant workers. Emily Sauermilch, baker, has...
Picryl description: Public domain image of a woman working, women labor, 1940s, economic conditions, home front, world war two, free to use, no copyright restrictions.
Manpower. Handicapped workers. Joseph Witte, twenty-eight years old, i...
Picryl description: Public domain image of a factory worker, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions. show less
Production. Aircraft engines. A young Negro worker stands ready to was...
Public domain photograph of aircraft engine, free to use, no copyright restrictions image - Picryl description