Abbasid Caliphate  Madinat al-Salam
Muhammad al-Mahdi   158 AH - 169 AH

Dirham AR 23

SHH 702

Parameter Obverse Reverse Notes Reference Provenance

2.95 g   22.4-23.0 mm   0.8 eqmm   7:00 o'clock   EF σmax(SigmaTest, 240 Hz) = obv. 57.4, rev. 56.5 MS/m Inscrption Inscrption dated 162 AH Album 215.1; Barrage Collection 162 AH; Laviox 710 Ex A Malloy, 2.8.2003