Watch List notes:

ATTICA. Athens. Circa 510-500/490 BC. Obol (Silver, 8 mm, 0.63 g, 4 h). Helmeted head of Athena to right. Rev. AΘE Owl standing to right, head facing the viewer; to left, olive sprig; all within incuse square. Seltman group L. HGC 4, 1657. Very rare. Well-centered and with an obverse in high relief. With the usual reverse die break, otherwise, nearly very fine.