Watch List notes:

Abbasid Caliphate. al-Amin. 193-198/809-813. AR dirham (24.5 mm, 2.93 g, 6 h). Madinat al-Salam mint, A.H. 195. Scarce. Naming Muhammad (al-Amin) as Amir al Muminin and Abdallah (al-Mansur) as Amir. Citing also Al-Abbas rabbi Allah above. Album 221.4; Ties 1597. toned VF.