Two test ingots: 1. Showing hair line cracking caused by unwanted gases
1971
Piece of the original ingot of R.F. Mushet's self-hardening steel,1868
1868
Ingot of Bessemer steel, c 1865.
1865
Lead ingots, mid 19th century.
1831-1870
Electrically cast ingots of a refractory alloy
1950
Ingot of gold and four specimens of silver, from Tel El-Amarna. XVIII Dynasty
1567-1306 BCE
Three lead ingots as used in machine for rolling
1700-1799
Ingots of tin used in experiments for purifying it by Pattinson's process for lead
before 1889