Hi Sam,

Thank you for contacting Mearto with your appraisal inquiry.
The expert was not able to identify the specific ruler/date but says these are "relatively common" and ones in this condition typically bring about $50 at auction
Based on the photos and information provided, and subject to examination, this is:

An Abbasid silver dirham
indeterminate date but probably first millenium CE
2.4 cm diameter
CONDITION: worn
PROVENANCE: inherited
$40-60*
*represents a fair-market value for auction purposes; retail or asking price may vary.

Please let us know if you have additional items to appraise, and thank you again for using Mearto.