ISLAMIC. Caucasus (Post-Mongol). Shirvan. Temp. Fath 'Ali Khan, A.H. 1180-1203 / A.D. 1766-1788. AR abbasi. 2.95 gm. 24 mm. Shamaki. A.H. 1181 / A.D. 1767/8. Album 2945. Good Extremely Fine; beautiful iridescent tone; especially well struck. Fascinating obverse legend 'ya saheb oz-zaman' ('O master of time' in Arabic).