Persia, Andragoras. Tetradrachm; Persia, Andragoras; c. 315 BC, Tetradrachm, 16.81g. Mitchiner-20, BM-3, Sear-6168. Obv: Turreted bust of city goddess r., wearing earring and necklace, monogram behind. Rx Helmeted Athena standing l., holding owl and shield decorated with Medusa head, diagonal spear in background, AN?PAGOPoY downwards on r. According to Mitchiner (p. 8), Andragoras may have been Parthian satrap of Media when he struck these rare coins at Ecbatana c. 315 BC.. EF