Kings of Parthia, Vologases IV (AD 147-191). BI Tetradrachm (28mm, 13.16g, 1h). Seleukeia on the Tigris, year 494 (January AD 182). Diademed and draped bust l., wearing tiara; B behind. R/ Vologases seated l. on throne, Tyche standing r. before him, presenting a diadem and holding sceptre. Sellwood 84.92. VF