Watch List notes:

Attica, Athens, Tetradrachm, after 449 BC; AR (g 17,10; mm 25; h 3); Head of Athena r., wearing crested attic helmet decorated with a olive wreath and palmette, Rv. AΘE, owl standing r. with closed wings; at l. olive twig and crescent. All within incuse square. SNG Copenhagen 31
On obverse light signs at h 2. On reverse, minimum traces of oxide. Old cabinet tone. About extremely fine.