Rotative Steam Engine by Boulton and Watt, 1788
1788
1788
1610; 1923
1785
1990-96
1772 (original); 1919 (model)
1705-1737
1785
1784
2000-100 BCE
1785
1784
4000-2001 BCE
1785
hallmarked 1788
circa 1780
1786
1785
1784
1780
1785-1789
1783
1788
1788
1784
1784
1785
1787
1780
1783
1784
1778-1780
1787
1785
1782
1778
1780
1860-1920
1782
1782
1783-1785
1778
1668; 1924
1642-1649 (original); 1883 (model)
1990-95
1936
300 BCE; 1905-1915
1600-1500 BCE (original); 1900-1914 (copy)
1960-1979
6000-5000BCE
1580-1588; 1930