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Sawing rough ends from a 'Louisiana' barbette plate, Bethlehem Steel Company (Bethlehem, Pa.)
Straight-line pig-casting machine, Edgar Thomson Works, Carnegie Steel Company (Braddock, Pa.)
Electric beam punching machine, Pencoyd Iron Works (Pencoyd, Pa.)
Bessemer converter in full blast, The National Tube Works (McKeesport, Pa.)
Rail mill intermediate stand and rolls, Edgar Thomson Works, Carnegie Steel Company (Braddock, Pa.)
Nail making machines (Donora, Pa.)
Blast furnace, Edgar Thomson Works, Carnegie Steel Company (Braddock, Pa.)
Casting an armor plate ingot bath, Bethlehem Steel Company (Bethlehem, Pa.)
Roughing mill in which billets are rolled, Donora Works, American Steel and Wire Company (Donora, Pa.)
Straightening an armor plate under a hydraulic press
Riveting up a section for a bridge, Pencoyd Iron Works (Pencoyd, Pa.)
Forming up steel pipe for welding
Steel Wire and Nail Making, Donora Works, American Steel and Wire Company (Donora, Pa.)
Wire rod finishing mill, Donora Works, American Steel and Wire Company (Donora, Pa.)
Open hearth furnace's regulating and crossover valves, Bethlehem Steel Company (Bethlehem, Pa.)
Drawing illustrating lap welding machine in action
Ingot mold train, Edgar Thomson Works, Carnegie Steel Company (Braddock, Pa.)
Manufacture of structural steel by open hearth process, Pencoyd Iron Works (Pencoyd, Pa.)
Lifting an ingot for USS Virginia, Bethlehem Steel Company (Bethlehem, Pa.)
Bessemer plant mixer being charged, Edgar Thomson Works, Carnegie Steel Company (Braddock, Pa.)
A pair of large electric gantry drilling machines, each carrying eight drills of five-foot radius
Manufacture of structural steel by open hearth process, Pencoyd Iron Works (Pencoyd, Pa.)
Straightening rolls in which steel pipe is straightened and smoothed
Rolling mill roll yard, Edgar Thomson Works, Carnegie Steel Company (Braddock, Pa.)
Manufacture of structural steel by open hearth process, Pencoyd Iron Works (Pencoyd, Pa.)

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