Rotative Steam Engine by Boulton and Watt, 1788
1788
1788
1610; 1923
1791
1797
1785
1990-96
1772 (original); 1919 (model)
1705-1737
1785
1784
1782-1793
1794
4000-2001 BCE
2000-100 BCE
1795
1785
hallmarked 1788
circa 1780
1795
1781-1790
1786
1784
1797
1790-1794
1791
1796
around 1790
1791-1792
1780
circa 1795
1790
1792
1795
1790
1788
1785-1789
1788
1783
1785
1784
1780
1784
1797
1787
1792
1792
1785-1795
1795
1795
1790