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