
Rotative Steam Engine by Boulton and Watt, 1788
1788
1788
1705-1737
1791
1990-96
1794
hallmarked 1788
1785
1785-1790
1784
1798
1784
1797
1791
1786
1787
1790
1796
1794
1792
1795
1795
1790
1795
1795
1790
1792
1785-1795
1792
1790
1785-1795
2000-100 BCE
1785
1785
1796-1798
1796-1797
1785-1789
1787
1794
1772 (original); 1919 (model)
1797
1788
1791
1790-1794
1784
1785
1785-1795
1785
1795
1787
1797