
Coin checking equal-arm balance
1653
1653
1700-1710
1779
1800-1810
1680-1699
1810
1820
1790-1800
1626
1775
1753-1754
1785-1801
1772-1781
1785-1801
1845-1871
1860-1880
1750-1760
1700-1799
1790
1761-1772
1763-1779
1775
1817-1820
1700-1725
1800-1899
1735-1779
1820-1840
1840-1850
1800-1810
1840-1850
1810
1780-1782
1775
1774
1763-1779
1800-1812
1770
1770-1780
1763
1790-1800
1768-1782
1785-1801