Watch List notes:

KINGS of PARTHIA. Vologases IV. Circa AD 147-191. BI Tetradrachm (27mm, 13.51 g, 12h). Seleukeia on the Tigris mint. Dated Dios 469 SE (October AD 157). Bust left, wearing tiara; B to right / Vardanes seated left, receiving wreath from Tyche standing right; ΘΞV (year) above, ΔΙΟΥ (month) in exergue. Sellwood 84.21; Sunrise 451 var. (year); Shore 428 var. (same). VF, toned.

From the Byron Schieber Collection, purchased from Dennis Kroh (Empire Coins).