ATTICA. Athens. AR Tetradrachm (16.58 gms), ca. 440-404 B.C. NGC FINE, Strike: 5/5 Surface: 2/5. Edge cut.Svoronos-pl. 14#4. Helmeted head of Athena facing right; Reverse: Owl standing right, head facing, olive sprig and crescent moon behind, all within incuse square. Light scratches in the obverse field before Athenas chin. Minor test cut on edge obscured behind gasket.From the William R. Biers Collection.