Watt's end measuring machine
1776
1776
1776-1780
1776-1780
1776-1780
1778
1769
2000-100 BCE
1778
1782
1770
circa 1780
1770
1990-96
1771
1775
1776-1780
1776-1780
1705-1737
1780
1772 (original); 1919 (model)
4000-2001 BCE
1769
1775
1772-1773
1776
1778-1780
1769
1773
1774
1771-1780
1770
1782
1730; 1967
1780
1972-3
2500 BCE
1880-120
1781
1990-95
1772
1776
1775
1066; 1876
1770
1780
1888-185
1945-50
1770-1780
1772
1777