Public domain
Placing the raw tube in the curing mold. This tire worker gives the tubes the same treatment his co-workers give tires; They are cured in a watch-case mold for the required length of time at the proper heat. Naturally tubes take less time than tires because they are single thickness. They are their
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit linePlacing the raw tube in the curing mold. This tire worker gives the tubes the same treatment his co-workers give tires; They are cured in a watch-case mold for the required length of time at the prope. 1941-01-01. Palmer, Alfred T., United States. Office For Emergency Management. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.