Kings of Parthia, Vologases IV (AD 147-191). BI Tetradrachm (24.5mm, 11.98g, 12h). Seleukeia on the Tigris, year 488 (August AD 176). 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 84.56. Good Fine