KINGS of PARTHIA. Mithradates II. 121-91 BC. AR Tetradrachm (31mm, 15.74 g, 12h). Seleukia on the Tigris mint. Struck circa 119-109 BC. Diademed bust left / Archer (Arsakes I) seated right on omphalos, holding bow in extended right hand; monogram to inner left; palm to outer right. Sellwood 24.5 corr. (