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Untitled photo, possibly related to: El Paso, Texas. Phelps Dodge refining company. Sheets of pure copper are formed by electrolysis in large tanks in later melted and poured into ingots
Public domain

Untitled photo, possibly related to: El Paso, Texas. Phelps Dodge refining company. Sheets of pure copper are formed by electrolysis in large tanks in later melted and poured 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 lineUntitled photo, possibly related to: El Paso, Texas. Phelps Dodge refining company. Sheets of pure copper are formed by electrolysis in large tanks in later melted and poured into ingots. 1942-01-01. Henle, Fritz. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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