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Gunter quadrant
1650-1725
1650-1725
1735-1752
1630-1642
1761
1762
1762
1600-11
1880-1920
1752
1820-1880
1668-1672 Probable
1762
1750
1975-1985
1831-1920
1800-1920
1831-1870
1890-1930
1803-1828
1762
1762
1968-1971
1841
1842
1898-1900
1801-1900
1720-1800
1700-1850
1740-1753
1807
1820-1860
1880-1920
1781-1790
circa 1880
1871-1930
1685-1724
1895-1905
1880-1920
1898
1650-1725
1950-1960
1780-1800
1873-1920
1801-1900
1840-1851
1762
1738-1777
1574