Abbasid Caliphate. al-Mansur. 136-158/754-775. AR dirham (27.3 mm, 2.92 g, 7 h). al-Muhammadiya mint (Rayy, ancient Rhagae), dated A.H. 151. Kalima; in margin, mint and date formula / al-Hadi Muhammad s/o commander of the faithful; above, Arabic letter "Mim"; below, Arabic letter "Ain"; in margin, Qur'an 9:33. Album 213.2. EF. Ex B.A. Seaby Ltd, June 1965.