Watch List notes:

Attica, Athens Tetradrachm circa 500-485, AR 20.50 mm., 17.32 g.
Head of Athena r., wearing crested Attic helmet. Rev. ΑΘΕ Owl standing facing, head r., olive spring behind. All within incuse square. Cf. Svoronos Pl. 5. cf. Asyut pl. XVIII.

Very Fine.