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Carnegie Steel Company - Wikipedia
Andrew Carnegie
The Historic Carrie Blast Furnace, now abandoned, part of Carnegie's Pittsburgh Steel Mills in Homestead (Pittsburgh), Pennsylvania, USA Stock Photo - Alamy
Homestead Steel Works, Homestead, Pa. | Library of Congress
Andrew carnegie steel mill hi-res stock photography and images - Alamy
Carnegie steel company hi-res stock photography and images - Alamy
Pittsburgh Steel Mills
Pittsburgh Steel Mills
Andrew Carnegie timeline | Timetoast timelines
Carnegie Steel Plant, Homestead, Pa. | Library of Congress