ATTICA, Athens. Circa 454-404 BC. AR Tetradrachm (24mm, 17.11 g, 8h). Helmeted head of Athena right / Owl standing right, head facing; olive sprig and crescent behind; all within incuse square. Kroll 8; HGC 4, 1597. VF, lightly toned, a touch of die wear on reverse.