Tabaristan. Abbasid Governor. ‘Umar ibn al-’Ala (AH 154-163 / AD 771-780). AR Hemidrachm. Tabaristan mint. Obv. Crowned Sasanian-style bust right; ’mr in Arabic to right; three stars-in-crescents and ’pd and nwk’ in Pahlavi in 2nd and 3rd quarters of margin. Rev. Fire altar flanked by attendants; crescent and star flanking flames; alternating triple pellets and star-in-crescents in outer margin. Album 57. AR. 2.07 g. 25.00 mm. About EF.