
Isaac Newton’s Reflecting Telescope (replica)
1668; 1924
1668; 1924
circa 1900
circa 1900
1830 (original); 1967 (model)
1839 (original); circa 1988 (replica)
1899 - 1993
1899
1901
circa 1900
1900
1899
1955; 1830
circa 1900
1901
1900
1872 (original); 1909 (model)
1901
1901
1902
1902
1901
1899
1934
1901
1901
2000-100 BCE
1902
1900
1899-1901
1899
1899
1900
1901
1901
1901
1900
1902
1899
1772 (original); 1919 (model)
1899
1900
1990-96
1901
1901
1899
1801-1892 (prepared); 1946 (element replaced)
1899
1934
1901
1902