SASANIAN KINGS. Yazdgird I. AD. 399-420. AR Drachm (4.12 gm; 29 mm). WHY more than likely WHYC mint (Ctesiphon region). Extremely rare mint for this ruler as well as extremely rare spelling of the mint. Bust right on floral ornament, wearing mural crown with frontal crescent and korymbos / Fire altar with ribbons; flanked by two attendants; monograms to left of flames and on altar shaft. SNS type Ib2/1a (pl. 52, A35 var.); Göbl type I/1; ; Sunrise 915var. Choice Superb.