"Copy of: Notes on the manufacture of iron, etc., Pittsburg [sic], 1859, and, Manufacture of steel at Trenton, 1861 by Washington A. Roebling,", circa 1859-1861

"Copy of: Notes on the manufacture of iron, etc., Pittsburg [sic], 1859, and, Manufacture of steel at Trenton, 1861 by Washington A. Roebling,", circa 1859-1861, Box: 9, Folder: 42. Roebling Family Collection, MC 654. New Brunswick Special Collections. https://archives.libraries.rutgers.edu/repositories/11/archival_objects/323465 Accessed November 19, 2024.