ATTICA, Athens. Circa 485/0 BC. AR Tetradrachm (22.5mm, 17.06 g, 7h). Helmeted head of Athena right / Owl standing right, head facing; olive sprig to left; all within incuse square. Seltman Group C; Asyut Group V; HGC 4, 1590. Struck with worn dies, off center on reverse. VF.