ABBASID: AE fals (2.86g), al-Ma'din, AH153, A-D328, kalima obverse, with final Allah iin center, and date in words filling the reverse center, with the mint and traces of a governor's name in the marginal legend; unpublished and possibly unique, F-VF, RRR. The style suggests a mint location somewhere between eastern Khorasan and Sind. Since "al-ma'din" means the mine or the market, there were many locations that would have taken that name.
Estimate: 120-160 USD