ISLAMIC, 'Abbasid Caliphate. Al-Mahdi, AH 158-169 / AD 775-785. Fals (Bronze, 20 mm, 2.71 g, 3 h), Madinat al-Salam, AH 166 = 782/3. ‘lā ilāha illā / Allāh waḥdahū / lā sharīka lahū’ (‘There is no deity but Allah, the One, there is no partner to Him’ in Arabic); in the margin, citing the mint official Nusayr, ‘ḍuriba bi Madīnat al-Salām sana sitt wa sittīn wa miʾa ʿalā yaday Nuṣayr’ (‘Struck in Madinat al-Salam in the year 166 under the hands of Nusayr’ in Arabic). Rev. ‘al-khalīfa / al-Mahdī Muḥammad / amīr al-muʾminīn’ (‘Caliph al-Mahdi Muhammad, Commander of the Believers’ in Arabic); unclear names above and below; in the margin, ‘bism Allāh Muḥammad rasūl Allāh ṣalla Allāh ʿalayh wa sallam’ (‘In the name of Allah. Muhammad is the messenger of Allah. May Allah bless him and grant him peace’ in Arabic). Album 307.1. Rare. Areas of weakness and with some deposits, otherwise, about very fine.