ARAB-SASANIAN: Mus'ab b. al-Zubayr, ca. 685-690, AR drachm (4.11g), KLMAN-NAL (Narmashir), AH70, A-17A, with Pahlavi GDH ("increase") instead of the governor's name in Arabic in ObQ3, countermarked lillah in ObQ4, lovely VF to EF, R.
Estimate: 300-350 USD