PARTHIAN EMPIRE. Vardanes II. 55-58 AD. Silver Drachm. Ekbatana mint. Diademed bust left, with short beard / Archer (Arsakes I) seated right on throne, holding bow; monogram below bow. Sellwood 69.14; Shore 398; Sunrise -. Encapsultaed / Certified and Graded AU by Independent Grading Services, Inc. Choice AU.