Public domain
Production. Copper. A thickener at a large copper concentrator of the Phelps-Dodge Mining Company at Morenci, Arizona. This plant supplies great quantities of the copper so vital in our war effort
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineProduction. Copper. A thickener at a large copper concentrator of the Phelps-Dodge Mining Company at Morenci, Arizona. This plant supplies great quantities of the copper so vital in our war effort. 1942-01-01. Henle, Fritz, United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
