Rotative Steam Engine by Boulton and Watt, 1788
1788
1788
1994
1795-1805 (original)
1879-1923
1936
1976
1785
1890-1914
1797-1804
1794
1959
1948-1975
1890
1809
1790-1819
1797
1853
1899
1832
1844
1801
1960-1969
1826
1790-1819
1924
1790-1819
1826
1790-1819
1790-1819
1790-1819
1790-1819
1833
1790-1819
1790-1819
1956
1790-1819
1790-1819
1917
1982
1772-1774
1985
1839
1980-1989
1938
1953
1902-1910
circa 1925
1927-1938