Watch List notes:

Abbasid; Al Mansur. Æ Follis (3.96 gm; 24 mm). Jurjan (Gorgan) mint, year 157. Obverse; Moslem Shahadah(t) within a highly decorative ring,Reverse; Mohamad Rasoul allah (Mohamad is messenger of Allah), mint: Jurjan (Gorgan), year 157. Brown reddish patina. Choice VF / EF. Extremely rare.