ISLAMIC, 'Abbasid Caliphate. al-Hadi, AH 169-170 / AD 785-786. Dirham (Silver, 24 mm, 2.72 g), al-Haruniya, AH 169 = 785/6. ‘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, ‘bism Allāh ḍuriba hādhā al-dirham bi al-Hārūniya sana tisʿ wa sittīn wa miʾa’ (‘In the name of Allah. This dirham was struck in al-Haruniya in the year 169’ in Arabic). Rev. Citing his brother Harun, the future al-Rashid, and governor Khuzayma, ‘Khuzayma / li’l-khalīfa al-Hādī / mimmā amara bihī Hārūn / ibn amīr al-muʾminīn / ibn Khāzim’ (‘For Caliph al-Hadi. From that ordered by Harun, son of the Commander of the Believers. Khuzayma son of Khazim’ in Arabic); in the margin: ‘Muḥammad rasūl Allāh arsalahū bi al-hudā wa dīn al-ḥaqq liyuẓhirahū ʿalā al-dīn kullih wa law kariha al-mushrikūn’ (‘Muhammad is the messenger of Allah. He sent him with guidance and the religion of truth, so that He may make it overcome all religions, even though the unbelievers may dislike it’ in Arabic). Album -. Cf. Album 217.4 (different date and without the governor’s name). Extremely rare. Minor scratches and with some porosity, otherwise, very fine.