Attica, Athens. Ca. 454-404 B.C. AR tetradrachm (23 mm, 17.15 g, 9 h). Helmeted head of Athena right, with frontal eye / ΑΘΕ, owl standing right, head facing; above and behind, olive sprig and crescent; all within incuse square. Kroll 8; SNG Copenhagen 31. Lighty toned. NGC Ch VF, strike: 5/5, surface: 3/5, test marks.