Public domain
One of the first manholes on the sewer line which is being driven through the lake site at the Berwyn project, Maryland
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineOne of the first manholes on the sewer line which is being driven through the lake site at the Berwyn project, Maryland. 1936-01-01. Mydans, Carl. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.