'Bell-crank' engine, c. 1799
1795-1805 (original)
1795-1805 (original)
1809
1797-1804
circa 1805
1808
circa 1800
1808
1893-4
1806
1807
2000-100 BCE
1795-1805
1798
1797
1799-1802
1863-7
1799
1795-1810
1802
1805
1796-1797
1796-1798
circa 1810
1807
1809
1990-96
1808
1806
1799
1705-1737
mid-1800s
1797
1801
1809
1772 (original); 1919 (model)
1775-1799 (original); 1900-1907 (model)
4000-2001 BCE
1801
circa 1810
1797
1801
1795-1805
circa 1808
1804-1807
circa 1795
circa 1800
1805
1804
1800-1807
1888-185