LOCAL ISSUES, Tabaristan. 'Abbasid governors. 'Umar b. al-'Ala, PYE 120-129 or 130 / AH 155-164 or 165. Hemidrachm (Silver, 24 mm, 1.98 g, 3 h), PYE 123 / AH 158 (= AD 775). Sasanian-style bust of 'Umar to right, wearing winged crown; crescent above right shoulder. Rev. Sasanian-style fire altar flanked by two attendants; star to left and crescent to right of flames. Malek 67.1. Attractive light toning. Extremely fine.