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Bessemer exterior
Bessemer and rail mill exterior
Bessemer interior
Rail mill and Bessemer exterior
Bessemer interior
Bessemer interior
Bessemer and rail mill exterior
Bessemer converter in full blast, The National Tube Works (McKeesport, Pa.)
Bessemer plant mixer being charged, Edgar Thomson Works, Carnegie Steel Company (Braddock, Pa.)
Bessemer converter in full blast, The National Tube Works (McKeesport, Pa.)
Illustration of first form of Bessemer converter with ladle
Straight-line pig-casting machine, Edgar Thomson Works, Carnegie Steel Company (Braddock, Pa.)
Forming up steel pipe for welding
Bessemer steel converter, Homestead Works
Teeming ladle, Edgar Thomson Works, Carnegie Steel Company (Braddock, Pa.)
Portrait of Alexander Lyman Holley
Engraving of Bessemer converters at Pittsburgh Steel Works (Pittsburgh, Pa.)
Straightening rolls in which steel pipe is straightened and smoothed
Drawing illustrating lap welding machine in action
Furnaces and steel works, Youngstown Sheet & Tube Company (Campbell, Ohio)
Kelly lighted the fireworks, but Bessemer led the parade
Fixing Bessemer converter bottom to shell (Pittsburgh, Pa.)
Kelly's first tilting converter
Kelly converter, Cambria Iron Works (Johnstown, Pa.)

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