Public domain
Substitute materials. Interior view of two-foot section of built-up wooden pipe, twenty-four inches in diameter. These pipes, used in place of corrugated iron or reinforced concrete pipes, are made of sections cut from short lengths of wood. About 100,000 feet of these wooden pipes were installed in
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineSubstitute materials. Interior view of two-foot section of built-up wooden pipe, twenty-four inches in diameter. These pipes, used in place of corrugated iron or reinforced concrete pipes, are made of. 1943-01-01. Smith, Roger, Perlitch, William, United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.