Public domain
Distilling. Distillation tanks where butatiene is purified at the Institute plant at Institute, West Virginia
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineDistilling. Distillation tanks where butatiene is purified at the Institute plant at Institute, West Virginia. 1935-01-01. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.