Rotative Steam Engine by Boulton and Watt, 1788
1788
1788
1610; 1923
1791
1785
1990-96
1772 (original); 1919 (model)
1705-1737
1785
1784
1782-1793
1790
1794
2000-100 BCE
1785
1784
1785-1790
4000-2001 BCE
1785
hallmarked 1788
1781-1790
circa 1780
1786
1791
1785
1784
1790-1794
1790
1780
1791-1792
1785-1789
1792
1788
1783
1790
1784
1788
around 1790
1785
1784
1787
1780
1790
1792
1792
1783
1784
1778-1780
1790
1787
1785