Watch List notes:

ARAB-SASANIAN: Yazdigerd type, 652-668, AR drachm (2.86g), SK (Sijistan), year 20 (frozen), A-1, Mehdi-528, first Islamic coin, distinguished from the last regular Sasanian issue of the same year by the addition of Arabic bism Allah in the second obverse quadrant; clipped down to the Umayyad reform standard, VF.

Estimate: 100-150 USD