GREAT MONGOLS: Anonymous, AR dirham (3.25g), NM, ND, A-1978K, on the obverse in Persian, be-qovvat-e aferidegar-e 'alam, "by the power of the Creator of the world ", and citing the caliph al-Mustansir (AH623-640) on the reverse, choice EF. Likely struck after the death of the caliph al-Mustansir in AH640.
Estimate: 100-130 USD