"The description and use of the Sector, Cross-staff and other Instruments", 2nd edition by Edmund Gunter
1636
1636
1864
1915
1543
1973
1942
1555
1849
1843-1853
1882
2010
1843-1853
1911
1902
2017
1983
1831
1974
1843-1853
1995
1962
1843-1853
1995
2019
1964
1843-1853
2011
1843-1853
1925-1951
1849
1973
1985
2016
2001
1843-1853
1823
1610-1611
1963
1983
circa 1965
1843-1853
1843-1853
1843-1853