In the early 16th century Gottfried von Berlichingen was known as Götz of the Iron Hand because after an injury and amputation, he wore a prosthesis made of sheet iron that was painted to match his skin.
Research:

Robert Moses and the Shaping of New York, Part 1
41:59

SYMHC Classics: Eradication of Smallpox
43:25

Behind the Scenes Minis: Progressive Medicine
22:11