Attica, Athens. Tetradrachm; Attica, Athens; c. 430 BC, Tetradrachm, 17.06g. Obv: Helmeted head of Athena r. Rx: Owl r., crescent and olive twig with two leaves behind; ?T? in r. field. Ex Berk 189, 24 March 2014, lot 113.Obverse struck in high relief . MS