Rotative Steam Engine by Boulton and Watt, 1788
1788
1788
1610; 1923
1791
1797
1785
1772 (original); 1919 (model)
1705-1737
1785
1784
1795
1794
2000-100 BCE
1785
4000-2001 BCE
hallmarked 1788
1795
1786
1791
1797
1784
1790-1794
1796
1791-1792
circa 1795
1790
around 1790
1792
1785-1789
1790
1795
1788
1788
1785
1784
1784
1787
1792
1785-1795
1792
1797
1790
1785-1795
1796-1798
1784
1787
1790
1796-1797
1785
1785-1795
1791