temp. al-Ma’mun ‘Abd Allah, 'Abbasid Caliph AH 194-218/AD 810-833 SICA-3, 233; BMC I, 260; A 222A.1, Extremely Fine No mint name (Madinat al-Salam). Kalima at center, double obverse marginal legends with Qur’an 30:4-5 (“to Allah…