Arabic inscriptions on both sides: Kalima and al-Amir Tasfin / Amir/al-Mossamin/Naser al-din/Ali ibn Yusuf. 10mm, 0.97 grams. No mint, no date (issued 1138-1142 AD), Spanish issue. Album 467 var.; Mitchiner WOI 387ff; "Monedas Andalusies" #2401; Hazard 1002.The Almoravids were a Berber Moroccan dynasty of North Africa, who lived between the current Senegal and south of Western Sahara. It is affiliated to the Berber tribe of Sanhaja and Lamtuna. From the eleventh century to the twelfth century, their empire was extended over present-day Morocco, Western Sahara, Mauritania, southern Spain and Portugal, western Algeria and a part of what is now Mali. At its greatest extent, the empire stretched 3,000 kilometres north to south.