ARAB-SASANIAN; Abdullah ibn Zubayr(Rival Khalif). Year 56 AH. AR Dirhem (4.14 gm; 31 mm). Obverse, Sasanian bust of Khosrau II turning right name “apdwla-i zubiran amīr-i -wurrishnikān” (ʻAbdullah bin Zubayr, Commander of the Believers) in front of face, phrase "Bismillah" on the 2nd quarter, triple dots at 6 oclock, reverse, mint "DA" (Diarabgird) on the right, year 56, large dot at left of 12 o'clock. Superb and full strike. Extremely rare this nice. Lightly toned.