Earliest Sasanian-style coins to carry an Arabic legend: Islamic. Time of the Rashidun (AH 31-41 / AD 651-661). Anonymous Arab-Sasanian series. Sasanian Empire. Yazdgird III (AD 6

Islamic. Time of the Rashidun (AH 31-41 / AD 651-661). Anonymous Arab-Sasanian series. Sasanian Empire. Yazdgird III (AD 632-651). AR drachm (29mm, 2.67g). NYS (Nisharpur) mint. Struck in YE 20 (AH 31 = AD 651/2). Bust of Yazdgird III r., wearing crenellated crown surmounted by wings, crescent and star; in outer field, Arabic jayyid (good) / Fire altar flanking facing attendants. Malek 940.