Watch List notes:

ARAB-SASANIAN: 'Ubayd Allah b. Ziyad, 673-683, AR dirham (2.59g), GD (Jayy), PYE27, A-12, clipped down to post-reform Umayyad standard, with graffiti in obverse margin, bold VF, RR. The date is very clearly hftwyst for 27, likely PYE27, which corresponds to YE47 in AH58/59, thus clearly during the gubernatorial years of 'Ubayd Allah b. Ziyad. I have found no reference to this strange date/mint combination. The style is excellent, not some sort of imitative issue.

Estimate: 175-225 USD