Watch List notes:

Pre-reform issues, Tabaristan ('Abbasid governors). Umar b. al-'Ala. AH 155-165 / AD 771-780. AR Hemidrachm (24mm, 1.93 g, 9h). TPWRSTAN (Tabaristan) mint. Dated PYE 125 = AH 160 (AD 776/7). Governor's name in Arabic in margin. Malek 77; Album 57. Some obverse luster. Choice EF.