'Bell-crank' engine, c. 1799
1795-1805 (original)
1795-1805 (original)
1898
1840-1851
1903
1846
1862
1785
1797-1804
1717-1725
1794
1772 (original); 1919 (model)
1801-1840 (original); 1901 (model)
1819
1775-1799 (original); 1900-1907 (model)
after 1859
1866
1788
2016
1815
1925