Watch List notes:

'Abbasid Caliphate. temp. Al-Mansur. AH 136-158 / AD 754-775. AR Dirham (23.1mm, 2.34 g, 4h). Al-Basra mint. Dated AH 140 (AD 757/8). With name 'Abd below reverse field. Lowick 988; SICA 3, 545; Album 213. Buckled flan. Good Fine. Rare.

It is exceptional for an 'Abbasid dirham of this period to bear a governor's name, and it is tempting to connect the 'Abd on this coin with the rebel coinage of Ibrahim b. 'Abdallah issued at Basra five years later (Album F214).