![](https://coimages.sciencemuseumgroup.org.uk/54/216/large_thumbnail_1894_0133__0002_.jpg)
Model of William Murdock's Oscillating Engine, 1785.
1785
1785
2000-100 BCE
1776
1775-1785
1778
1776-1780
1776-1780
1776-1780
1762
1778
1762
1783
1785
1785
1769
1761
1781-1790
1761
1784
1762
1784
1785-1790
1762
1762
1762
1762
1762
1777-1785
1782
1787
1764
hallmarked 1788
1762
1762
1760-1770
1770
1785-1789
1771
1760-1775 probable date
circa 1780
1772-1773
1790
1772 (original); 1919 (model)
1760-1772
1770
1780
1986 (replica); 1501-1600 (original)
1776-1780
1776-1780
1784