"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
1843-1853
1911
2010
1902
1983
1831
2017
1843-1853
1974
1962
1995
1843-1853
1995
2011
1964
2019
1843-1853
1925-1951
1849
1843-1853
1973
2016
2001
1985
1823
1983
1843-1853
circa 1965
1610-1611
1843-1853
1843-1853
1914-1970
1843-1853