TABERISTAN, Umar ibn A’ala, (771-782 AD). AR Hemidrachm (1.92 gm; 24 mm). Obverse: Sasanian bust to the right, name Omar-ibn A’la in Pahlavi in front of the face, Arabic name "Umar b(i)n" in the 3rd quarter margin and "A’la" on the second quarter margin, Reverse; fire altar with attendants, mint TPURSTAN (Tabaristan) on the right, date: 125. Lovely strike. Choice FDC. Lustrous. Lightly toned.