
Rotative Steam Engine by Boulton and Watt, 1788
1788
1788
1787
hallmarked 1788
1791
1787
1790
1792
1790
1790
1792
1792
1790
2000-100 BCE
1790
1790
1772 (original); 1919 (model)
1792
1990-96
1791-1792
1787
1705-1737
1791
1788
1791
1787
4000-2001 BCE
1793
1790-1793
1850-1899
1791
1789
1774; 1923
1642-1649 (original); 1883 (model)
2000-100 BCE
30
1787
1-79 CE; before 1914
1801-1700
1991-1783 BCE
5000-500 BCE
1792
2000 BCE
1991-1786 BCE
1787
1788
1787
circa 1790
1787
1901-1936; 180 BCE
1791