Public domain
Production. Halftrac armoured cars. Steel sheets from which body parts for halftrac cars will be made are case-hardened in a large Eastern plant converted from the manufacture of locks and safes. Diebold Safe and Lock Company, Canton, Ohio
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineProduction. Halftrac armoured cars. Steel sheets from which body parts for halftrac cars will be made are case-hardened in a large Eastern plant converted from the manufacture of locks and safes. Dieb. 1941-01-01. United States. Office Of War Information, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.