"The description and use of the Sector, Cross-staff and other Instruments", 2nd edition by Edmund Gunter
1636
1636
1915
1973
1543
1864
2007
1956
1931
1866
1823
1903
1787
1752
1708
1750
1765
1900-1940
1951-1974
1914-1970
1926-1993
1958
1951-1974
1961
1916-1982
1961
1957
1957
1950
1939-1993
1970
1924
1960
1939-1993
1951
1939
1920-1993
1926-1993
1916-1982
1959
1926-1993
1962
1900-1993
1965
1925-1951
1967
1972