Watch List notes:

ISLAMIC, Persia (Pre-Seljuq). 'Alids of Tabaristan. Isma'il I ibn Ahmad. AH 279-295 / AD 892-907. Æ Fals (23mm, 3.83 g, 10h). Usrushana mint. Dated AH 280 (AD 893/4). Album 1444; ICV 1491. VF, brown surfaces. Very rare.