Public domain
Adjusting the fibre board machine. Timber Mechanics Section, Forest Products laboratory. Madison, Wisconsin
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineAdjusting the fibre board machine. Timber Mechanics Section, Forest Products laboratory. Madison, Wisconsin. 1937-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.