Attica, Athens. Tetradrachm; Attica, Athens; c. 440 BC, Tetradrachm, 17.16g. Obv: Helmeted head of Athena r. Rx: Owl standing r., head front; behind, olive twig with two leaves and crescent; before, ethnic ATE downwards.Wonderful image of Athena, which seems to show an archaic smile. EF