Model of William Murdock's Oscillating Engine, 1785.
1785
1785
1785
1778
1782-1793
1783
1785
1769
2000-100 BCE
1776
1784
1784
1785-1790
1778
1777-1785
1782
1787
1764
hallmarked 1788
1770
1776-1780
1776-1780
1776-1780
1775-1785
1785-1789
1781-1790
circa 1780
1790
1990-96
1770
1775-1785
1784
1784
1784
1771
1783
1769
1775
1788
1705-1737
1763
1776
1772-1773
1778-1780
1790
1785
1765
1791
1785
1780
1772 (original); 1919 (model)