Greek Asia. Parthia. Vologases IV (147-191 AD). BI Tetradrachm, Seleukeia on the Tigris mint. Dated SE 490 (178 AD). Obv. Diademed bust left, wearing tiara; behind, B. Rev. Tyche standing right, presenting wreath to king seated left; year above, month below. Cf. Sellwood 84, 61-9. BI. g. 10.74 mm. 26.00 Good VF.