Watch List notes:

ATTICA. Athens. Circa 430s BC. Tetradrachm (Silver, 25 mm, 17.17 g, 10 h). Head of Athena to right, wearing crested Attic helmet decorated with three olive leaves and palmette. Rev. AΘE Owl standing right, head facing; to left, olive sprig and crescent; all within incuse square. Kroll 8. Svoronos pls. 12-13 passim. Boldly struck in high relief. Minor flan crack, otherwise, about extremely fine.