Public domain
Fort Knox. Earth moving equipment. A huge carryall scraper and a powerful tractor work on a cut-and-fill job as a new access road is built at Fort Knox, Kentucky
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineFort Knox. Earth moving equipment. A huge carryall scraper and a powerful tractor work on a cut-and-fill job as a new access road is built at Fort Knox, Kentucky. 1942-01-01. United States. Office Of War Information, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
