Brass astrolabe with silver inlay 171 A.D. Brass astrolabe with silver inlay 171 A.D. The data provided in the gazeteer would have been used by an educated person to calculate from each location the direction of Mecca. Editorial Stock Photo - Afloimages
Brass astrolabe with silver inlay 171 A.D. The data provided in the gazeteer would have been used by an educated person to calculate from each location the direction of Mecca.