ATTICA. Athens. AR Tetradrachm (17.20 gms), ca. 440-404 B.C. NGC Ch AU, Strike: 3/5 Surface: 4/5. Flan flaw..Svoronos-pl. 12#14. Helmeted head of Athena facing right; Reverse: Owl standing right, head facing, olive sprig and crescent moon behind, all within incuse square. Flan flaw just below the owls head. Otherwise lustrous and thoroughly appealing..