Watch List notes:

ISLAMIC, 'Abbasid Caliphate. temp. Al-Mansur, AH 136-158 / AD 754-775. Fals (Bronze, 21 mm, 2.51 g, 9 h), citing the governor Yazid ibn Usayd, Bardha'a in Armenia, AH 143 = AD 760/1. Vardanyan 2011, 245. A very rare date. Very fine.