Watch List notes:

Attica, Athens Tetradrachm After 449, AR 22.50 mm., 17.20 g.
Head of Athena r., wearing Attic helmet decorated with olive leaves and palmette. Rev. Owl standing r.; in l. field, olive sprig and crescent. All within incuse square. Svoronos pl. XIV. Dewing 1591.

Good Very Fine.