Working Drawings, Seven-Story Mill
The first building ever designed or executed with a metal skeleton -- cast iron columns and beams -- enclosed in the outer masonry walls like the works of a watch in its case.
Use for educational purposes only. Single copies (print, photocopy, download) are permitted for personal study, research and teaching.
Watt and Boulton, “Working Drawings, Seven-Story Mill,” Digital Collections - University at Buffalo Libraries, accessed December 1, 2020, https://digital.lib.buffalo.edu/items/show/29870.