Pre-reform issues, Arab-Sasanian. Umar b. 'Ubaydallah. AH 67-72 / AD 686-691. AR Drachm (30.7mm, 3.70 g, 12h). BYŠ (Bishapur) mint. Dated AH 70 (AD 689/90). Obverse margin: - / lillah al-hamd :: / - / -. Malek, Arab-Sasanian 317-8; SICA 1, 174ff; Album 21. Pierced. VF.