Long mahogany strip brass pin gauge with five pins
1758-1769
1758-1769
1758-1769
1758-1769
1760-1770
1758-1773
1762
1762
1762
1762
1769
1755
2000-100 BCE
1761
1761
1757
1762
1762
1762
1762
1755
1764
1762
1762
1770
1755
1758-1769
1990-96
1770
1760-1772
1758-1773
1775
1755-1765
1771
1760-1775 probable date
1769
1775
1760
1761
1761
1705-1737
1762
1758-1769
1761
1763
1761-1762
1760-1775
1761
1762
1772-1773
1761