Watt's end measuring machine
1776
1776
1785
1776-1780
1776-1780
1776-1780
1778
1785
1785
2000-100 BCE
1784
1778
1777-1785
1782
1775-1785
1783
1784
circa 1780
1990-96
1775
1776-1780
1776-1780
1783
1705-1737
1785
1780
1772 (original); 1919 (model)
4000-2001 BCE
1775-1785
1784
1784
1783
1784
1775
1776
1778-1780
1785
1782
1730; 1967
1780
1972-3
2500 BCE
1880-120
1781
1990-95
1776
1775
1066; 1876
1783
1783
1780