Watch List notes:

ATTICA. Athens. Circa 510-500/490 BC. Obol (Silver, 8 mm, 0.50 g, 6 h). Head of Athena to right, with frontal eye, wearing crested helmet. Rev. Α/Θ-Ε Owl standing left, head facing; olive spray to right; all within shallow incuse square. HGC 4, 1656. Seltman Group H. Very rare. Toned. About very fine.