Public domain
Conversion. Tire plant. This vulcanizing unit, largest in the world, was designed for the vulcanizing of giant tires used on earth-moving machinery, but is now helping out the war program by vulcanizing self-sealing gas tanks for the nation's war planes. The mold containing the tank has been lowered
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineConversion. Tire plant. This vulcanizing unit, largest in the world, was designed for the vulcanizing of giant tires used on earth-moving machinery, but is now helping out the war program by vulcanizi. 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.