Watch List notes:

KINGS of PARTHIA. Volagases IV. 147-191 AR Tetradrachm (13.02 gm; 25 mm). Dated 502 SE = AD 190/191. Seleukeia on the Tigris mint. Bust left, wearing tiara / Vologases seated left, receiving wreath from Tyche standing right, holding scepter; (year) above. Cf. Sellwood 84.16; Shore 428; Sunrise 451. Choice EF / aEF. Toned. Well struck for the issue.