'Bell-crank' engine, c. 1799
1795-1805 (original)
1795-1805 (original)
1785
1797-1804
circa 1805
1794
circa 1800
1893-4
1793-1803
1785
1778
1782-1793
1783
1785
2000-100 BCE
1776
1795-1805
1784
1784
1785-1790
1798
1797
1799-1802
1778
1777-1785
1782
1787
hallmarked 1788
1799
1776-1780
1776-1780
1776-1780
1780-1800
1802
1805
1796-1797
1796-1798
1785-1789
1781-1790
circa 1780
1790
1990-96
1784
1784
1784
1783
circa 1795
circa 1800
1805
1788
1794