Public domain
Screening, segmenting, and fanning sugar beets with machinery developed by Professor Roy E. Bainer, of the University of California
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineScreening, segmenting, and fanning sugar beets with machinery developed by Professor Roy E. Bainer, of the University of California. 1940-01-01. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.