ISLAMIC, 'Abbasid Caliphate. temp. Al-Rashid, AH 170-193 / AD 786-809. Dirham (Silver, 26 mm, 2.21 g, 2 h), citing al-Ma'mun as heir, Ma'dan al-Shash, AH 190 = AD 805/6. SICA III, 1980. Somewhat crystallized and with some edge chipping, otherwise, very fine.
From the Tabib Collection, formed over the past 40 years.