ATTICA, Athens. Circa 465/2-454 BC. AR Tetradrachm (23mm, 17.17 g, 3h). Helmeted head of Athena right / Owl standing right, head facing, spread tail feathers; olive sprig to left; all within incuse square. Starr Group V.B, Series 4; HGC 4, 1596. minor surface marks. Near EF. Excellent metal.