
Telegraph block instrument, South Eastern Railway
circa 1905
circa 1905
1886
1898
circa 1890
circa 1890
circa 1890
circa 1890
1892-1902
1889
1898-1908
1901
1890-1899
2000-100 BCE
1880-1890
1900-1909
1890-1900
1904
1895
1882
1908
1884
1901
1902
1891-1900
circa 1885
1904
circa 1900
1909
1900
1899
1872 (original); 1909 (model)
1905
1888
1955; 1830
1890
circa 1885
1892
1897
circa 1900
1898-1900
1903
1901
1880-1899
1885-1895
1880-1890
1886-1887
circa 1880
1900
1895
1896