![](https://coimages.sciencemuseumgroup.org.uk/494/324/large_thumbnail_1994_7263_0001.jpg)
Signal Block Bell, South Eastern Railway
1862
1862
1863-7
2000-100 BCE
1893-4
1934
1862
1955; 1830
1772 (original); 1919 (model)
1801-1840 (original); 1901 (model)
1775-1799 (original); 1900-1907 (model)
1930 (replica); 1834 (original)
1986 (replica); 1501-1600 (original)
1934
1862
1705-1737
1870-1877
1830 (original); 1967 (model)
1990-96
1862
4000-2001 BCE
1862-1863
1862-1863
1862-1863
1862-1863
1888-185
1871-1830
1863
1862
1862
1862
1862
1862
1862
1832-1850
1862
1862
1863
1863
2000-1350
1862
1883-01
1862
1862
1972-3
1870-1800
1945-50
3000 BCE
1990-95
1862
1863