Attic story with cast-iron roof framework
The cast-iron roof framework represents a later advance
its invention has been credited to J. B. Papworth in 1821.
Use for educational purposes only. Single copies (print, photocopy, download) are permitted for personal study, research and teaching.
Unknown artist, “Attic story with cast-iron roof framework,” Digital Collections - University at Buffalo Libraries, accessed December 1, 2020, https://digital.lib.buffalo.edu/items/show/29890.