Watch List notes:

ABBASID, Al-Mansur, (AH 136-158 / 754-775 AD). AR Dirhem (2.94 gm; 25 mm). mint, Madinat al-Salam (Baghdad), year 157, reverse, the phrase "Bakh Bakh" (Admired and well liked). Choice EF. Toned.
Estimate: 40 USD