Watch List notes:

Attica, Tetradrachm, Athens, c. 500-485 BC; AR (g 16,19; mm 21; h 9); Head of Athena r., wearing Attic helmet,Rv. AΘE, owl standing r., with wings closed; at l., olive spring. All within incuse square. SNG Copenhagen 15-20.
Rare, cabinet tone, good very fine.