The original "hand rolled" mill
"The Forge of Vulcan" by Luca Giordano
Then came water powered trip hammers
"Venus at the Forge of Vulcan" Jan Brueghel the Younger of Antwerp, Belgium c. 1605
Right foreground
Still in use in Liege c. 1910
Saugus Iron Works
https://www.nps.gov/sair/learn/historyculture/rolling-and-slitting-mill.htm Then the man-powered and (later) steam powered rolling machines
Henry Cort's rolling machine, 1783
http://shropshirehistory.com/iron/iron_making.htm Sheet mills
http://www.metalworkingworldmagazine.com/a-short-sheet-metal-history/ "The Iron Rolling Mill", Adolph Menzel, "Modern Cyclops", 1875
