ATTICA, Athens. Circa 454-404 BC. AR Tetradrachm (23mm, 16.87 g, 8h). Helmeted head of Athena right, with frontal eye / Owl standing right, head facing; olive spray and crescent to left; all within incuse square. Kroll 8; HGC 4, 1597. Lightly toned, porous, small test cuts, countermarks, test punch on reverse. Fine.