Watch List notes:

PHOKIS, Federal Coinage. Circa 478-460. Obol (Silver, 10 mm, 0.92 g, 8 h). ΦΟ (barely visible) Frontal bull's head. Rev. Forepart of boar, with two legs visible, to right; all within an incuse square . BCD 206 (this coin). Williams post 91 (O - / R 58). Attractive, toned and struck in high relief. Extremely fine.
From an American collection, acquired from E. J. Waddell, and from the BCD Collection, Numismatica Ars Classica 55, 8 October 2010, 206.