Watch List notes:

PHOKIS, Federal Coinage. Circa 457-446 BC. Obol (Silver, 10mm, 0.94 g 4). Frontal bull's head, O and Φ to left and right. Rev. Forepart of boar to right; to right, olive twig. BCD Lokris-Phokis 238. Williams 210. Somewhat porous, otherwise, good very fine.