ISLAMIC, 'Abbasid Caliphate. temp. Al-Amin, AH 193-198 / AD 809-813. Dirham (Silver, 24 mm, 2.87 g, 2 h), al-Muhammadiya, AH 195 = 810/1. ‘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-Muḥammadiya sana khams wa tisʿīn wa miʾa’ (‘In the name of Allah. This dirham was struck in al-Muhammadiya in the year 195’ in Arabic). Rev. Citing his brother al-Maʾmūn as heir apparent, governor al-Fadl, and the chief general Tahir [ibn al-Husayn], ‘al-Faḍl / Muḥammad rasūl Allāh / mimmā amara bihī al-imām al-Maʾmūn / walī ʿahd al-muslimīn / ʿAbd Allāh ibn amīr al-muʾminīn / Ṭāhir’ (‘al-Fadl. Muhammad is the messenger of Allah. From that ordered by Imam al-Maʾmun, successor to the covenant of the Muslims, ʿAbd Allah son of the Commander of the Believers. Tahir’ 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 221.5. Rare. Areas of weakness and with some porosity and corrosion, otherwise, very fine.