The coins of Isdigerd I. are not remarkable as works of art; but they possess some features of interest. They are numerous, and appear to have been issued from various mints, but all bear a head of the same type. [PLATE XXI., Fig. 1.] It is that of a middle-aged man, with a short beard and hair gathered behind the head in a cluster of curls. The distinguishing mark is the headdress, which has the usual inflated ball above a fragment of the old mural crown, and further bears a crescent in front. The reverse has the usual fire-altar with supporters, and is for the most part very rudely executed. The ordinary legend is, on the obverse, _“Mazdisn bag ramashtras Izdikerti, malkan malka Airan,”_ or “the Ormazd-worshipping divine most peaceful Isdigerd, king of the kings of Iran;” and on the reverse, _Ramashtras Izdikerti,_ “the most peaceful Isdigerd.” In some cases, there is a second name, associated with that of the monarch, on the reverse, a name which reads either “Ardashatri” (Artaxerxes) or, “Varahran.” It has been conjectured that, where the name of “Artaxerxes” occurs, the reference is to the founder of the empire; while it is admitted that the “Varahran” intended is almost certainly Isdigerd’s son and successor, Varahran V., the “Bahram-Grur” of the modern Persians. Perhaps a more reasonable account of the matter would be that Isdigerd had originally a son Artaxerxes, whom he intended to make his successor, but that this son died or offended him, and that then he gave his place to Varahran. [Illustration: PLATE 21.]