Watch List notes:

ATTICA. Athens. Circa 430s-420s BC. Tetradrachm (Silver, 25 mm, 17.18 g, 7 h). Head of Athena to right, wearing crested Attic helmet decorated with three olive leaves and palmette; below chin, rosette countermark. Rev. AΘE Owl standing right, head facing; to left, olive sprig and crescent; all within incuse square; to right of the owl, rosette countermark. Kroll 8. Svoronos pls. 12-13 passim. An unusual piece with two interesting countermarks. Extremely fine.