ATTICA, Athens. Circa 454-404 BC. AR Tetradrachm (25.5mm, 17.19 g, 9h). Helmeted head of Athena right, with frontal eye / Owl standing right, head facing; olive sprig and crescent to left; all within incuse square. Kroll 8; HGC 4, 1597. EF, toned, trace deposits, small die flaw on reverse.