AR Hemidrachm [13,16 mm; 1,39 gm]. Istakhr (Persepolis) mint. Diademed and draped bust of Artaxerxes III to left, wearing low crenellated crown; in field to right, triskeles / Radiate, diademed and draped bust of Mithra to left. Van’t Haaff 631A. Minor roughness, VF.