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
1795
1794
1790
2000-100 BCE
1784
1785
1785-1790
4000-2001 BCE
1785
hallmarked 1788
circa 1780
1781-1790
1795
1786
1791
1797
1785
1784
1790-1794
1796
1790
1791-1792
1780
1785-1789
1797
circa 1795
1783
1792
1788
1790
1795
1788
around 1790
1784
1784
1785
1787
1780
1785-1795