ATTICA, Athens. Circa 454-404 BC. AR Tetradrachm (15.47gm, 26mm) Helmeted head of Athena right / Owl standing right, head facing; olive sprig and crescent behind; all within incuse square. Kroll 8; SNG Copenhagen 31. About Extremely Fine, lightly toned, a few minor deposits on the reverse. And test cut on reverse.