Gray-Milne seismograph made by James White
1885
1885
1908
1885
circa 1925
1925
1899
circa 1925
1898
1897
1898
1898
1898
1898
1898
1898
1898
1898
1885
1914
1898
1898
1898
1898
1898
1898
1898
1883-1885
05 July 1965
1898
1899
1899
circa 1925
1914
08 July 1964