SASANIAN KINGS. Ardashir I, 223/4-240. Drachm (Silver, 19 mm, 2.08 g, 3 h), mint C ('Ktesiphon'), circa 228/30-238/9. Draped bust of Ardashir I to right, wearing diadem and close-fitting headdress with korymbos and no earflaps. Rev. Fire altar with diadems; in exergue, pellet. Göbl Type III/2. SNS I Type IIIa/3a. Somewhat porous, otherwise, very fine.