
Rotative Steam Engine by Boulton and Watt, 1788
1788
1788
1791
1794
1791
1786
1787
1790
1794
1792
1795
1790
1795
1795
1790
1792
1790
hallmarked 1788
1787
1795
1792
2000-100 BCE
1790
1990-96
1788
1791
1790-1794
1795
1787
circa 1795
1791-1792
1792
1794
1772 (original); 1919 (model)
1790
1705-1737
4000-2001 BCE
1936
1790
300 BCE; 1905-1915
1795
circa 1793
1793
1788
1792
1794
1793
1786
1792
1792
1790