Watch List notes:

Attica, Tetradrachm, Athens, c. 500-485 BC; AR (g 17,14; mm 22; h 3); Head of Athena r., wearing crested Attic helmet, Rv. AΘE, owl standing r. with closed wings; at l. olive twig. All within incuse square. SNG Copenhagen 15-20.
Rare, cabinet tone, very fine.