'Bell-crank' engine, c. 1799
1795-1805 (original)
1795-1805 (original)
1720
1805-1806
1884
1805-1806
1891
1777 (original); 1894 (model)
1938
1887-1893
1848-1850
1867-1900
1924-1937
1930 (original); 1984 (model)
1902
1884
1888
1887
circa 1916
1901
1901
1901
1901
1901
1901
1901
1901
1891
1901
1901
1901
1901
1901
1901
1901
1901
1901
1901
1901
1901
1901
1901
1901
1901
-1920
1698-1744
1901
1840
1848-1850
1805-1806
1884-1887