ABBASID GOVERNORS OF TABARISTAN, 'Umar b. al-'Ala, hemidrachm, TPWRSTAN PYE 125, governor's name and patronymic in Pahlawi before bust and in Arabic in margin, 1.96g (Album 57; Malek 77), uncirculated with some brilliance, a scarce one-year type
(120-150 GBP)