Bidspirit auction | Gunter's quadrant brass model great
Gunter's quadrant brass model great instrument of discovery - perpetual almanac on one side and other side calculates azimuth, solar declination, made by FM 1987 in excellent condition see pics
Gunter's quadrant brass model great instrument of discovery - perpetual almanac on one side and other side calculates azimuth, solar declination, made by FM 1987 in excellent condition see pics