
Graphite Electrode
2022
2022
1960-2003
1878-1890
1956
1841-1900
1980-1982
1980-1982
1956
1956
1935-1960
1970
2020
1977
circa 1930s
1857
1857
1856-12-28
1997-2007
1997-2007
circa 1711
2020
2020
2020
1880-1886
unknown date
1841-1900
1980-1982
1701-1800
1795-1825
1750-1900
1863
1980-1982
1970-1981
1948
1992-1993
circa 1860
1997-2007
1997-2007
1936-7
unknown date
1796-1890
circa 1963
1780-1820
1999
1920
Sunday 4 January 1835