Public domain
Auto conversion to airplane engines. On the site of an automobile assembly line, this battery of Bullard boring machines used in manufacturing of airplane engines, now stands. With normal operations of this automobile factory suspended for the duration, conversion to war production was a gigantic ta
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineAuto conversion to airplane engines. On the site of an automobile assembly line, this battery of Bullard boring machines used in manufacturing of airplane engines, now stands. With normal operations o. 1942-01-01. Gruber, Edward, United States. Office For Emergency Management. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.