ATTICA, Athens. Circa 454-404 BC. AR Tetradrachm (22.5mm, 17.08 g, 11h). Helmeted head of Athena right, with frontal eye / Owl standing right, head facing; olive sprig and crescent behind; all within incuse square. Kroll 8; HGC 4, 1597. Good VF, toned, obverse a little off center, slight porosity on obverse.