Watch List notes:

Attica, Tetradrachm, Athens, c. 449-404 BC; AR (g 17,12; mm 24; h 9); Head of Athena r., wearing Attic helmet decorated with three olive-leaves and palmette, Rv. AΘE, Owl r., at l. olive-sprig and crescent, countemark at r. All within incuse square. SNG Copenhagen 31 ff.
Good very fine.