Sasanian Kingdom. Ardashir I. A.D. 223/4-240. BI tetradrachm (24 mm, 12.33 g, 9 h). Mint C ("Ctesiphon"), Phase 2c, struck ca. A.D. 226/7-228/30. Diademed and draped bust right, wearing Parthian-style tiara decorated with star / Fire altar with diadems. SNS type IIe(3d)/3a(2b); Göbl II/4a/2. aVF.