Watch List notes:

'Abbasid Caliphate. temp. Al-Mahdi. AH 158-169 / AD 775-785. AR Dirham (26.8mm, 2.80 g, 6h). Harunabad mint. Dated AH 169 (AD 785/6). Citing Harun as heir in reverse field; Arminiya above, Hasan below. Vardanyan, Armenia 187; SICA 3, 2038; Album 215.3. Slightly creased, minor obverse double striking. VF.