Abbasid Governors of Tabaristan, Umar bin al-Ala عمر بن العلا (155-165h), AR Hemidrachm.
23mm,
1.89gm. Tabaristan mint, Year, PYE 125.
Crowned Sasanian style bust right,
Governor's full name in Pahlavi before bust and in Arabic in margin.
Album 57, Malek 77. About extremely fine. Good example.