KINGS of PARTHIA. Mithradates II. 121-91 BC. AR Tetradrachm (27mm, 15.88 g, 12h). Seleukeia on the Tigris mint. Struck circa 119-109 BC. Diademed and draped bust left / Archer (Arsakes I) seated right on omphalos, holding bow; palm to right. Sellwood 24.4; Shore 67. EF.