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Drive motors at the Aliquippa Works facility of the Jones & Laughlin Steel Corporation. Pennsylvania. September, 1953.
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Crane No. 1 at the Jones & Laughlin Steel Corporation's Pittsburgh Works. Pittsburgh, PA. 1890.
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Charlie Chaplin approves this machine...
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Brake beam assembling and dismantling machine at the scrap and reclamation shop of the Pittsburgh and Lake Erie Railroad Company. McKees Rocks, PA. January, 1950.
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Radial drill in the McKees Rocks Machine and Erecting Shop of the Pittsburgh and Lake Erie Railroad Company. McKees Rocks, PA. July, 1904.
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Workers process a 90-ton ingot with a 10,000-ton forging press at Carnegie Steel Company's Homestead Steel Works. Homestead, PA. 1893-1895.
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