"The description and use of the Sector, Cross-staff and other Instruments", 2nd edition by Edmund Gunter
1636
1636
1915
1864
1543
1973
1942
1555
1843-1853
1882
2010
1843-1853
1911
2017
1902
1983
1962
1831
1995
1843-1853
1974
1995
1843-1853
1843-1853
2011
1964
1973
1843-1853
1610-1611
1925-1951
2016
1985
1843-1853
1920-1925
1823
1849
1633
2007
1983
1843-1853
circa 1965
1985
2011
1843-1853