Subjects: Duncannon Iron Company, Furnaces, Pennsylvania, Perry County, Mills, Iron Industry, Spillways, Albumen Prints
Collection: United States Library of Congress: Stereoviews

Publisher: E. & H.T. Anthony & Co.
Subjects: New York (State), New York (State), Railroads, Ramapo River (N.Y. and N.J.), Iron industry, Smelting furnaces, Orange County (N.Y.)
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]

Publisher: Bradbury, W.J.
Photographer: Bradbury, W.J.
Series: New Hampshire Scenery.
No.: 23
Subjects: New Hampshire, Hillsborough County (N.H.), Furnaces, Glass industry
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]

Publisher: Brubaker, C.B.
Photographer: Childs, B.F. (Brainard F.) (ca. 1841-1921)
Subjects: Michigan, Superior, Lake, Furnaces, Iron industry
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]

Subjects: Florida, Saint Augustine (Fla.), Forts & fortifications, Furnaces
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]

Subjects: Florida, Saint Augustine (Fla.), Forts & fortifications, Batteries (Weaponry), Furnaces, Sea walls
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]

Subjects: California, Santa Clara County (Calif.), Carts & wagons, California, Bridges, Smelting furnaces, Mercury
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]

Subjects: California, Santa Clara County (Calif.), Smelting furnaces, Mercury
Collection: NYPL Digital Collections: Robert N. Dennis [From The New York Public Library]