'Bell-crank' engine, c. 1799
1795-1805 (original)
1795-1805 (original)
1785
1809
1797-1804
circa 1805
1808
1794
circa 1800
1808
1893-4
1785
1812
1778
1782-1793
1783
1785
1806
1769
1765-1806
1807
2000-100 BCE
1776
1795-1805
1784
1784
1785-1790
1798
1797
1799-1802
1863-7
1770-1800
1771-1800
1778
1777-1785
1782
1787
hallmarked 1788
1770
1799
1776-1780
1776-1780
1776-1780
1795-1810
1780-1800
1802
1805
1796-1797
1796-1798
1771-1800
1790-1810