
Telegraph block instrument, South Eastern Railway
circa 1905
circa 1905
1901
2000-100 BCE
1904
1901
1902
1904
circa 1900
1900
1899
1872 (original); 1909 (model)
1905
1955; 1830
circa 1900
1903
1901
1900
circa 1900
1899
after 1903
1901
1901
1902
1902
1899
1899
1901
1901
1904
1903
1903
1934
1900
1899-1901
1899
1903
1901
circa 1900
1905
1801-1840 (original); 1901 (model)
1775-1799 (original); 1900-1907 (model)
1839 (original); circa 1988 (replica)
circa 1900
1930 (replica); 1834 (original)
1905
1901
1900
circa 1900
1801-1892 (prepared); 1946 (element replaced)
circa 1900