Watch List notes:

PHLIASIA. Phlious. Circa 430-420 BC. Obol (Silver, 9 mm, 1.00 g). Forepart of a bull to right, with one leg bent and head lowered. Rev. Large Φ, with pellet at the center, within an incuse square with a pellet in each corner. BCD Peloponnesos 92 (this coin). BMFA 1166. Very rare. Well-centered, toned and attractive. About extremely fine.
From the "Collection sans Pareille" of Ancient Greek Fractions and from the BCD Collection, LHS 96, 8 May 2006, 92.