Electrolysis Copper Sheets at Phelps Dodge 1920

The vintage image showcases sheets of pure copper formed by electrolysis at the Phelps Dodge refining company in El Paso, Texas. In 1920, the company melted down these sheets and cast them into ingots, demonstrating early 20th-century copper production methods. This image serves as a valuable resource for learning about the industrial practices in Texas.

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