Cooke's train signalling instrument of 1845, Norfolk Railway
1845
1845
1845
1842
1934
1836
1842
1837
1845
1837
1840
1841
1837
1839
1955; 1830
1835
1837
1835
2000-100 BCE
1838
1835-1845
1893-4
1841
1863-7
1837
1837
1838
circa 1840
1839
1843
1840-1845
1844
1844
1840
1837
1837
1772 (original); 1919 (model)
1839
1842
1840
1930 (replica); 1834 (original)
1838
1986 (replica); 1501-1600 (original)
1839-1840
1837
1840
1841
1839
1839
1990-96
1705-1737