Watch List notes:

ABBASID, Mahdi (3rd Khalif of Abbasids). (158-169 AH). Æ (2.84 gm; 16 mm). Obverse; la ellaha illa allah, vahdahoo la sharika alh; Reverse; Al khalifah Al Mahdi Mohammad, Amir Al mo'menin, Abd(?)at the bottom, date, mint; Mohammadiyeh? (Ray), year 167. Nice brown reddish patina. Choice EF.