
Rotative Steam Engine by Boulton and Watt, 1788
1788
1788
1785
1784
1787
hallmarked 1788
1785
1784
1784
1786
1787
2000-100 BCE
1783
1785
1785
1785
1772 (original); 1919 (model)
1990-96
1787
1785
1705-1737
1788
1784
1783-1787
1785
1787
4000-2001 BCE
1783
1784
1784
1668; 1924
1642-1649 (original); 1883 (model)
1783
2050-1750 BCE
1990-95
1610; 1923
700 BCE; 1931
6000-5000BCE
1960-1979
1845-1964
1600-1500 BCE (original); 1900-1914 (copy)
1979-80
1850-1899
1784
1774; 1923
2000-100 BCE
1936
1730; 1967
1783-1784
3000-2500 BCE
circa 3000 BCE