London & Birmingham Railway Guard's Clock, 1837-1839
1838
1838
circa 1840
1839
1843
1841
1839
1955; 1830
1840
1842
1934
2000-100 BCE
1893-4
1863-7
1841
1838
1840
1842
1842
1705-1737
1840
1930 (replica); 1834 (original)
1838
1772 (original); 1919 (model)
1801-1840 (original); 1901 (model)
1839
1839
1775-1799 (original); 1900-1907 (model)
1839
1990-96
circa 1842
1838
1840
1838
1842
1839-1840
1870-1877
1840
1830 (original); 1967 (model)
1842
1841
1839
4000-2001 BCE
1842
1843
1842
circa 1840
10000-5000 BCE
1910-130
1842
1843