Public domain
A woman employee on the P-51 Mustang fighter assembly line at North American Aviation adjusts the engine controls before the plane moves down the assembly floor
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineA woman employee on the P-51 Mustang fighter assembly line at North American Aviation adjusts the engine controls before the plane moves down the assembly floor. 1942-01-01. Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.