ATTICA, Athens. Circa 465/2-454 BC. AR Tetradrachm (23mm, 16.17 g, 9h). Helmeted head of Athena right, with frontal eye / Owl standing right, head facing; olive sprig behind; all within incuse square. Starr Group V.B; HGC 4, 1596. Near VF, heavily porous, edge split.