Public domain
Untitled photo, possibly related to: Great Falls, Montana. Anaconda Wire and Cable Company. The finishing mill where copper wire bars are reduced to copper rods by running through a series of rolls. From this mill the rods are coiled and are then treated with a dilute solution of sulphuric acid and
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineUntitled photo, possibly related to: Great Falls, Montana. Anaconda Wire and Cable Company. The finishing mill where copper wire bars are reduced to copper rods by running through a series of rolls. F. 1942-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.