ItemNo: 2039
Acc_no: AR0026
Ruler: Umar ibn al-Ala (771-780 AD)
Dynasty: Abbasid Caliphate
Denomination: AR hemidrachm
Mint: TAPWRSTAN (Tabaristan)
Date: 128 PYE
Weight (g): 1.92
Diameter (mm): 23
Die Axis: 2:00
References: Malek 2004, no. 79.1