
"The description and use of the Sector, Cross-staff and other Instruments", 2nd edition by Edmund Gunter
1636
1636
1915
1864
1543
1973
1850-1899
1708
1765
1602
1782
1512
1942
1835
1850
1679
1862
1862
1862
1862
1825
1823
1921
1956
1752
1904
1888
2019
1996
2007
2014
1992
2013
1963
1866
1963
1971
1950
1962
1926-1993
1968
1961
1948
1960
1926-1993
1939