Attica, Athens. Tetradrachm; Attica, Athens; Tetradrachm, c. 430 BC, 17.11g. Obv: Helmeted head of Athena r.; three small upright olive leaves on front edge of Attic helmet; beaded necklace. Rx: Owl standing r., head facing; to l., olive twig with two leaves and crescent moon beneath; ethnic in r. field. . MS