"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
1902
2010
1983
2017
1831
1843-1853
1974
1962
1995
1843-1853
1995
2011
2019
1964
1925-1951
1849
1843-1853
2016
2001
1985
1843-1853
1973
1823
1843-1853
1983
1610-1611
circa 1965
1843-1853
1843-1853
1843-1853
1963