Rotative Steam Engine by Boulton and Watt, 1788
1788
1788
1610; 1923
1801
1791
1805
1775-1799 (original); 1900-1907 (model)
circa 1800
1795-1805 (original)
1797
1785
1799-1802
1795-1805
1772 (original); 1919 (model)
1783-1800
1705-1737
1785
1780-1800
1795-1805
1784
1782-1793
1780-1800
1797-1804
1794
1795-1805
1795
2000-100 BCE
4000-2001 BCE
1785
1802
1802
1795-1805
hallmarked 1788
1799
1793-1803
1795
1781-1790
circa 1800
circa 1780
1786
1797
1791
1784
1790-1794
1796
1780
1791-1792
circa 1795
1790
around 1790
1792