Palmer's micrometer (replica)
circa 1848
circa 1848
1848
1990-96
1955; 1830
1893-4
1860-1920
1610; 1923
1938; (1838)
1834-1836
1934
1863-7
2000-100 BCE
1930 (replica); 1834 (original)
1930 (replica); 1834 (original)
1772 (original); 1919 (model)
1775-1799 (original); 1900-1907 (model)
1847-1848
1705-1737
1934
1870-1877
1801-1840 (original); 1901 (model)
4000-2001 BCE
1839 (original); circa 1988 (replica)
1830 (original); 1967 (model)
1847
1990-95
1910-1921
1917-918
1856-11
1824 (original); 1891 (model)
1-79 CE; before 1914
circa 1848
1899/12
1847
1856-01
1898-01
1847
1884
1860-1920; 500-401 BCE
1848-original
1848
1848
1866-06
1847
1847
1-79 CE; before 1914
1860-1920; 500-401 BCE
1848
1931; 250 BCE
1847