TABERISTAN. Umar ibn A’ala, (771-782 AD). AR Hemidrachm (1.87 gm; 23 mm). Obverse: Sasanian style bust to the right, name Umar in Kufic in front of the face, phrase “ARS” (Ar(u)s? Meaning Stunning?) or Arun(?-per Pakzadian) on the 3rd quarter and Pahlavi phrase APD on the second quarter. Reverse; fire altar with attendants, mint TPURSTAN (Tabaristan) on the right, date: 128 to the left. Lovely strike. Choice FDC. Fully lustrous. Scarce.