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Battle of the Monongahela: Homestead Steel, 1892 | Pennsylvania Center for the Book
Homestead Steel Works, Homestead, Pa. | Library of Congress
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Carnegie Steel Mill 1905 | Pittsburgh Beautiful
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History | Steel Valley Trail Council
![Carnegie Steel Company, "Lucy" furnace, Pittsburgh, Pa.] | Library of Congress](http://tile.loc.gov/storage-services/service/pnp/det/4a10000/4a19000/4a19400/4a19413v.jpg "Carnegie Steel Company, \"Lucy\" furnace, Pittsburgh, Pa.] | Library of Congress")
Carnegie Steel Company, "Lucy" furnace, Pittsburgh, Pa.] | Library of Congress
Pittsburgh Steel Valley Private History Tour 2023
Pittsburgh Steel Mills
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ExplorePAHistory.com - Image | Braddock, Picture, Route 40
Carnegie steel company hi-res stock photography and images - Alamy
Ernest Fiene | The Lucy Plant, Carnegie Steel Mill, Pittsburgh | The Metropolitan Museum of Art
