
Clockwork drive, for refracting telescope of 5.9-inch aperture
1829
1829
1829
1835
1870-1877
1828 - 1903
1825
1826
1834-1836
1832
1807 - 1904
1889-02
1824-1830
1831
1829
1825-1835
1829
1826
1828
1835
1831
1833
1834
1774; 1923
1825-1830
1830
1825-1835
1642-1649 (original); 1883 (model)
1826
1824-1834
1825
2000-100 BCE
1832
1883-01
1834
1833
1835
30
1827
1-79 CE; before 1914
1833
1836
1834
1834
1836
1824 (original); 1891 (model)
c.1830
1991-1783 BCE
5000-500 BCE
1894-05
1833