KINGS of PARTHIA. Mithradates II. 121-91 BC. AR Tetradrachm (30mm, 16.15 g, 12h). Seleukeia on the Tigris mint. Struck circa 120/19-109 BC. Diademed and draped bust left / Archer (Arsakes I) seated right on omphalos, holding bow in outstretched right hand; monogram to inner left; palm to outer right. Sellwood 24.5 corr. (