SAMANID: Isma'il I, 892-907, AR dirham (2.89g), al-Shash, AH291, A-1443, citing the caliph's vizier as abu'l-husayn wali al-dawla al-wazir, nice strike, VF, RR. Perhaps the only coin type that not only names the caliph's vizier but also includes his title al-wazir.
Estimate: 125-175 USD