Public domain
Chicago, Illinois. In this machine at the laboratory of the Chicago and Northwestern Railroad various paints, preservatives and other coatings used on railroad equipment are put through severe tests
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineChicago, Illinois. In this machine at the laboratory of the Chicago and Northwestern Railroad various paints, preservatives and other coatings used on railroad equipment are put through severe tests. 1942-01-01. Delano, Jack. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
