"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
1843-1853
1882
1843-1853
2010
1911
1902
2017
1983
1831
1974
1843-1853
1995
1962
1843-1853
1995
2011
1964
1843-1853
1843-1853
1925-1951
2016
1849
1973
1985
1843-1853
2001
circa 1965
1823
1983
1610-1611
1963
1843-1853
2011
1920-1925
1843-1853
1843-1853