Rotative Steam Engine by Boulton and Watt, 1788
1788
1788
1610; 1923
1801
1791
1800-1820
1805
1821
1820
1775-1799 (original); 1900-1907 (model)
1797
1795-1805 (original)
1799-1802
1795-1805
1772 (original); 1919 (model)
1795-1820
1705-1737
1819
1795-1805
1797-1804
1804-1807
1794
1795-1805
1795
2000-100 BCE
4000-2001 BCE
1802
circa 1810
1802
1813
1795-1805
1814
1807
1790-1810
hallmarked 1788
1793-1803
circa 1800
1799
1795
1795-1810
1786
1797
1863-7
1815
1791
1808
1790-1794
1796
1790-1820
around 1790
circa 1808