ATTICA, Athens. Circa 454-404 BC. AR Tetradrachm (22mm, 16.82 g, 8h). Helmeted head of Athena right, with frontal eye / Owl standing right, head facing; olive sprig and crescent behind; all within incuse square; c/m: uncertain design within incuse circle. Kroll 8; HGC 4, 1597. Fine, slightly granular, light deposits.