'Bell-crank' engine, c. 1799
1795-1805 (original)
1795-1805 (original)
1809
1797-1804
circa 1805
1808
1893-4
circa 1800
1806
1815
1807
2000-100 BCE
1815
1795-1805
1798
1797
1799-1802
1810-1817
1863-7
1820
1815
1808
1799
1795-1810
1802
1812
1805
1796-1797
1796-1798
1813
circa 1810
1807
1811-1812
1809
1809
1797
1990-96
1801
1813
1808
1796-1815
mid-1800s
1797
1801
1820
1772 (original); 1919 (model)
circa 1808
1819
1775-1799 (original); 1900-1907 (model)
1800-1818
1800-1818