Attica, Athens. Ca. 465-455 B.C. AR tetradrachm (24 mm, 17.17 g, 11 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. Starr grp. V.A. NGC Ch XF, strike: 5/5, surface: 3/5.