Operators and their levers handling converters and ladles, steel works, Pittsburg, Pa., U.S.A.
Publisher: Keystone View Co.
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Steel works, Pittsburgh, Pa., beam of hot iron in rolling mill, drawn out [00?] feet long.
Publisher: Underwood & Underwood
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Steel works, Pittsburgh, Pa., beam of hot iron in rolling mill, drawn out [00?] feet long.
Publisher: Underwood & Underwood
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Suspension Bridge, Pittsburgh.
Photographer: Purviance, W.T. (William T.)
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Suspension Bridge, Pittsburgh.
Photographer: Purviance, W.T. (William T.)
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Charging a Bessemer converter, steel works, Pittsburg, Pa., U.S.A.
Publisher: Keystone View Co.
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Interior of grand opera house, Philadelphia, Pa., U.S.A.
Emptying cooled pig iron from molds into car, pig iron machine, Pittsburg, Pa.
Publisher: Keystone View Co.
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Front view of ladle emptying molten iron into moulds, pig iron machine, Pittsburg, Pa., U.S.A.
Publisher: Keystone View Co.
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Modern pig iron machine at rest, Pittsburg, Pa., U.S.A.
Publisher: Keystone View Co.
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Red-hot steel beam from rolling process being cut into lengths by buzz saw, steel works, Pittsburg, Pa., U.S.A.
Publisher: Keystone View Co.
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Steel ingot on the "table" of the "blooming" mill, steel works, Pittsburg, Pa., U.S.A.
Publisher: Keystone View Co.
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Filling molds with steel, Pittsburg, Pa., U.S.A.
Publisher: Keystone View Co.
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
River coal trade, Pittsburg, Pa., U.S.A.
Publisher: Keystone View Co.
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Plant of the blast furnace, Pittsburgh, Pa., U.S.A.
Publisher: Keystone View Co.
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Fountain, corner Federal and Ohio Sts., Pittsburg, Pa., U.S.A.
Publisher: Keystone View Co.
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
Subjects: Pennsylvania, Pittsburgh (Pa.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]
