ISLAMIC, Persia (Pre-Seljuq). Samanids. Nasr I ibn Ahmad. AH 250-279 / AD 864-892. Æ Fals (27mm, 4.69 g, 4h). al-Shash mint. Dated AH 255 (AD 869). Album 1441; ICV 1486. VF, earthen black-green patina, adjustment marks, cleaning marks on reverse. Rare.