
'Memento mori' watch in the form of a skull, known as the 'Mary Queen of Scots' watch.
1780-1850
1780-1850
1829
1770
1846
1829
1850
1781-1790
1777-1785
1831
1815-1825
1849
1760-1775
1791
1795
1801-1830
1847-1848
1775
1830 (original); 1967 (model)
1821
1771-1830
1775
1842
1793-1803
1849
1837
1794
1837
1834-1844
1837
1821-1831
1955; 1830
1842
1830-1850
1846
1848
1850
1835
1847
1832
1845
circa 1805
circa 1750
1755
1807
1752
1762
1750
1782-1793
1752
1770