![](https://coimages.sciencemuseumgroup.org.uk/54/216/large_thumbnail_1894_0133__0002_.jpg)
Model of William Murdock's Oscillating Engine, 1785.
1785
1785
1794
2000-100 BCE
1776
1770-1800
1775-1785
1778
circa 1800
1776-1780
1776-1780
1776-1780
1771-1800
1778
1783
1785
1785
1780-1800
1781-1790
1782-1793
1784
1784
1785-1790
1798
1797
1771-1800
1777-1785
1782
1787
hallmarked 1788
1770
1799
1785-1789
1796-1797
1796-1798
1771-1800
1771
1794
circa 1780
1772-1773
1790
1772 (original); 1919 (model)
1775-1799 (original); 1900-1907 (model)
1770
1780
1986 (replica); 1501-1600 (original)
1776-1780
1776-1780
1784
1784
1784