Public domain
Anaconda smelter, Montana. Anaconda Copper Mining Company. Pouring copper anodes from refining furnace; sample of copper being taken
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineAnaconda smelter, Montana. Anaconda Copper Mining Company. Pouring copper anodes from refining furnace; sample of copper being taken. 1942-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.