Greek Asia. Kings of Parthia. Vologases IV (147-191 AD). BI Tetradrachm. Seleukeia on the Tigris mint. Dated .. 475 SE (AD 164). Obv. Diademed bust left, wearing tiara; B to right. Rev. Vologases seated left, receiving wreath from Tyche standing right, holding scepter; year above; month in exergue. Sellwood 84.29 or 30. BI. 13.59 g. 28.00 mm. Choice for issue. Delicate warm patina. About EF/Good VF.