Gunter´s quadrant

Gunter's-quadrant-18th-England

Gunter’s quadrant 18th England.
A set of hour lines and a date scale for use in time-telling;a set of lines for calculating the azimuth (direction east or west)of the sun.

G-H Bruguière de Gorgot - Scientifics & Nautical instruments- Copyright © 2012 - 2017