Watch List notes:

ISLAMIC, 'Abbasid Caliphate. temp. Al-Mahdi, AH 158-169 / AD 775-785. Dirham (Silver, 23 mm, 2.81 g, 10 h), citing al-Mahdi as al-Khalifa and the heir apparent Musa ibn al-Mahdi (the future caliph al-Hadi), al-Basra, AH 165 = AH 781/2. SICA III, 625. Graffito on the reverse, otherwise, good very fine.


From a Swiss collection of Umayyad and Abbasid coins, assembled in the 1970-1980s (with original flip with S. Album's description).