![](https://coimages.sciencemuseumgroup.org.uk/55/947/large_thumbnail_1967_0005__0001_.jpg)
'Bell-crank' engine, c. 1799
1795-1805 (original)
1795-1805 (original)
1785
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1863-7
1793-1803
1794
1790-1819
2000-100 BCE
1790-1819
1813
1790-1819
1776
1795-1805
1790-1819
1893-4
1770-1800
1775-1785
1778
circa 1800
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1809
1790-1819
1797-1804
1790-1819
1790-1819
1790-1819
1790-1819
1776-1780
1780-1820
1776-1780
1776-1780
1807
1790-1819
1808
1790-1819
1790-1819
1790-1819
1761-1820
1771-1800
1762