KINGS OF PARTHIA. Vologases IV, circa 147-191. Dichalkon (bronze, 4.13 g, 16 mm), Seleukeia on the Tigris. Diademed bust of Vologases IV to left, wearing tiara; to left, [EOY]. Rev. Draped and turreted bust of Tyche to right. Sellwood 84.144. Shore 632. Nearly very fine.