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El Paso, Texas, Phelps Dodge refining company. Electrolytic tanks in which sheets of pure copper are formed. The sheets are later melted and cast into ingots
Public domain

El Paso, Texas, Phelps Dodge refining company. Electrolytic tanks in which sheets of pure copper are formed. The sheets are later melted and cast into ingots

Henle, Fritz · 1942-01-01 · photo, print, drawing

From the collection of Library of Congress. Free to download, adapt and use — no permission needed.

Subjects
texasnitrate negativesel paso countyel pasounited states
Credit lineEl Paso, Texas, Phelps Dodge refining company. Electrolytic tanks in which sheets of pure copper are formed. The sheets are later melted and cast into ingots. 1942-01-01. Henle, Fritz. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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