Flip to Drawing of the Pittsburgh Reduction Company's first cell room, Pittsburgh PA, circa 1889.Close Window
Credit: Courtesy of Alcoa Incorporated
Charles Martin Hall, circa 1883.
Image
Charles Martin Hall, circa 1883.
Flip to Drawing of the Pittsburgh Reduction Company's first cell room, Pittsburgh PA, circa 1889.Close Window
Credit: Courtesy of Alcoa Incorporated
Charles Martin Hall, circa 1883.
