KINGS OF PARTHIA. Vologases IV, circa 147-191. Dichalkon (Bronze, 3.28 g, 16 mm), Seleukeia on the Tigris, SE 475 = 163/4. Diademed bust of Vologases IV to left, wearing tiara; to left, EOY. Rev. Draped and turreted bust of Tyche to right; to right, A. Sellwood 84.144. Shore 632. Very fine