Attica, Athens, AR Tetradrachm, c. 454-404 BC, Head of Athena right, wearing crested Attic helmet ornamented with olive leaves, rev. ATHE owl standing facing, with olive spring crescent moon to left, all within incuse square, 17.24g (Kroll 8; Dewing 1591-8; SNG Copenhagen 31; HGC 4, 1597), struck in high relief with dark tone, good very fine.
Estimate: £800 - £1200