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Drawing of the Pittsburgh Reduction Company's first cell room, Pittsburgh PA, circa 1889.
flipFlip to Charles Martin Hall, circa 1883.
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Drawing of the original Hall electrolytic cell set-up in the Pittsburgh Reduction Company plant, which shows the cast-iron crucibles, or "pots"; the carbon anodes suspended by copper rods from an overhead copper support; and, on the floor, ingot molds.

Credit: Courtesy of Alcoa Incorporated

Charles Hall's original electrolytic cell set-up in the Pittsburgh Reduction Company plant included cast-iron crucibles or "pots," carbon anodes suspended by copper rods from an overhead copper support, and ingot molds.

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