
Hydrostatic balance by Jesse Ramsden, London, 1785-1789
1785-1789
1785-1789
1796-1797
1796-1798
1778
1776-1780
1776-1780
1776-1780
1776
1794
1782
1787
hallmarked 1788
1799
1775-1785
1785
1783
1785
1785
1782-1793
1797
1785-1790
1784
1781-1790
1798
1784
2000-100 BCE
1778
1777-1785
1787
1783
1775
1794
circa 1780
1784
1784
1783
1799
1788
1775-1799 (original); 1900-1907 (model)
circa 1795
1776-1780
1776-1780
1797
1775
1785
1776
1775-1795
1705-1737
1797
1775-1794