Watch List notes:

SASANIAN KINGS. Ardaxšīr (Ardashir) I. AD 223/4-240. AR Drachm (27mm, 4.33 g, 3h). Mint C ("Ctesiphon"). Phase 3, circa AD 233/4-238/9. Bust right, wearing diadem (type R) and mural crown; pellets flanking crown / Fire altar (flames 2) with diadems (type G). SNS Type V(4a)/3a(2b) and pl. 13., 190; Sunrise 721 (this coin). Iridescent toning. EF. Rare.

Ex Sunrise Collection (New York Sale XXXVII, 5 January 2016), lot 373.