"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
1995
1831
1843-1853
1974
1995
1843-1853
1843-1853
1964
2011
1843-1853
1973
2016
1925-1951
1610-1611
1843-1853
1985
1920-1925
1823
1849
1843-1853
2007
2011
1983
circa 1965
1985
2001
1633