Watch List notes:

ATTICA. Athens. Circa 454-404 BC. Hemiobol (Silver, 7 mm, 0.32 g, 3 h). Helmeted head of Athena to right. Rev. AΘE Owl standing to right, head facing; to left, olive sprig; all within incuse square. HGC 4, 1681. Kroll 14. SNG Copenhagen 59-61. Toned. Porosity, otherwise, fine.