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Column dial by Henry Robert
1831-1870
1831-1870
1860
1836
1825-1835
1850-1856
1850-1859
1851
1842
1845
2000-100 BCE
1851
1858-03-02
1893-4
1850-1859
1853
1849
1855
1846-1859
1854
1840
1875
1850
1837
1837
1870
1831-1870
1821-1850
1831-1870
1833
1822-1840
circa 1854
1850
1825
circa 1854
circa 1840
1850-1860
1855
1864
1858
1860
1821-1831
1849
circa 1868
1841
1837
1839
1955; 1830
1826
1857
1875