SASANIAN KINGS, Yazdgird I, 399-420 AD. AR Drachm (4.06 gm; 29 mm). Obverse, yazdgird's but turning right, reverse, fire altar with attendants, phrase "NWKW" (good deed) on the base of fire altar. Struck on a broad flan and bold portrait (more than likely early years). Choice aEF. Lightly toned. Rare.