These objects form a rich and comprehensive historical and technical archive of all aspects of metallurgy, including the processes of smelting, working, physical testing and assaying.
before 1889
2022
1696-1700
1860
2000
1920-1929
1998
1928
circa 1930
15/7/27
1996
1865
1848
1845
1701-1800
1958
before 1864
1887
1882-1884
1903
1884-1886
1929
1927
1895-1905
1980
before 1873