Watch List notes:

ISLAMIC DYNASTS. Abbasid- Al-Mahdi, AH 296-317 / AD 908-929. Æ (2.36 gm; 22 mm)., Obverse, Shahadah, reverse phrase " Mamaa Amr-e be al-Mahdi Mohamad Ibn Amir-Almo'menin, a(not decipherable) Abdallah followed by "Bakh Bakh" (Admired), mint Madinat al-Salam (Baghdad), year 158. Original find patina. Choice EF.