HAFSID: Abu Ishaq Ibrahim II, 1350-1369, AV dinar (4.70g), Qafsa, ND, A-509, H-605, reverse central legend is abu ishaq ibrahim / ibn amir al-mu'minin / abu yahya abu bakr, and the mint name appears in the lower left corner of the obverse field, slightly uneven surfaces, VF, RRR. Qafsa is now Gafsa, now a city of about 100,000 in the the west central area of Tunisia, honored on a modern Tunisian coin dated 1988.
Estimate: USD 600 - 700