
Isaac Newton’s Reflecting Telescope (replica)
1668; 1924
1668; 1924
1838
1830 (original); 1967 (model)
1844
1839 (original); circa 1988 (replica)
circa 1842
1840
1845
1840
1842
1837
1837
1842
circa 1840
1843
1841
1837
1839
1955; 1830
1842
1837
1839
1840-1845
1837
1837
1845
1845
1934
1837
1840
1840
1844
1844
2000-100 BCE
1841
1893-4
1838
1863-7
1838
1842
1842
1837-1840
1839
1772 (original); 1919 (model)
1839
1839
1990-96
1844
1838
1839