Public domain
Production. Aircraft engines. That little instrument Verna Lampy is welding looks and sounds a lot like the drill your third bicuspid may be familiar with. It's used in a huge Midwest aircraft plant, however, to etch serial and inspection numbers on airplane motor parts, making a permanent record to
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineProduction. Aircraft engines. That little instrument Verna Lampy is welding looks and sounds a lot like the drill your third bicuspid may be familiar with. It's used in a huge Midwest aircraft plant, . 1942-01-01. United States. Office Of War Information, Rosener, Ann. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.