Small planispheric astrolabe with Arabic script with five plates and a rete with silver studs, may be Persian, c. 1650. The reverse side is engraved with a universal Gemma Frisius projection scale IC 1057 [international checklist].
Small planispheric astrolabe with Arabic script with five plates and a rete with silver studs, may be Persian, c. 1650. The reverse side is engraved with a universal Gemma Frisius projection scale IC 1057 [international checklist].