Abbasid, Harun al-Rashid, dirham, Madinat al-Salam 176h, rev. with al-khalifa al-Mardi/Harun, 2.74g (Album 219.1; Wilkes & Curtiss, 13 April, 2015, 66, same obv. die), one obverse scratch, otherwise extremely fine and a very rare variety

Estimate: 400-600