Watch List notes:

Abbasid Caliphate. al-Mansur. 136-158/754-775. AR dirham (20.1 mm, 2.39 g, 2 h). Samarqand, AH 144. Citing the governor al-Ash'ath b. Yahya, with the Sogdian tamgha of Samarqand below the reverse field. VF. Rare.