1742
1778
2000-100 BCE
1785
1750-1770
1783
1755
1748-1763
1757
1776
1777-1785
hallmarked 1788
1750-1766
1776-1780
1758-1769
1758-1773
1740-1753
1745-1755
circa 1750
1769
1762
1764
1782
1752
1784
1750-1760
1770
1775-1785
1785-1789
1750