Al-Andalus - Almoravid Empire (1086 - 1147) Silver quirate (0,85 g. 13 mm.) Ali ibn Yusuf (500-537 H - 1106 - 1143 A.D.) as amir al-Muslimin.
Vives 1703; Hazard 926. F. Benito de los Mozos Cb41
Good very fine condition. Lovely original silver patina. Scarce coin!