Greek Coinages, ATTICA, Athens, Tetradrachm, c. 353-294, helmeted head of Athena right, rev. owl standing right, olive sprig to left, αθε to right, all within incuse square, 16.77g/9h (Kroll 15; BMC 132ff; Bingen 1969, Pi II; SNG Berry 695). Good fine, reverse better £50-£60