Public domain
The agricultural engineering farm at Iowa State College. Ames, Iowa. It is used in cooperation with the United States Department of Agriculture in corn production and corn storage investigations. Ames, Iowa
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineThe agricultural engineering farm at Iowa State College. Ames, Iowa. It is used in cooperation with the United States Department of Agriculture in corn production and corn storage investigations. Ames. 1942-01-01. Delano, Jack. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
