Ancient World, Foreign, Arab Sassanian Dynasty, Silver Dirhem, 4.45 gms, 29.76 mm, Obverse: Crowned bust of king facing right, dotted border around, stars and crescents around perimeter, Arabic script ‘bismillah’ on periphery, Reverse: Holy Sassanian fire-altar showing bust of Ahura Mazda in the flames, flanked by two attendants, dotted border around, stars and crescents around perimeter, very fine, rare.