Watch List notes:

SICILY. Leontinoi. Circa 476-466 BC. Litra (Silver, 11 mm, 0.78 g, 12 h). Lion scalp facing. Rev. ΛΕ - ΟΝ Wheat grain. Boehringer, Münzgeschichte, pl. 10, 19. Jameson 624 (this coin). SNG ANS 215. Clear and nicely toned. Obverse struck slightly off center, otherwise, about extremely fine.
From the "Collection sans Pareille" of Ancient Greek Fractions, and from the collections of R. Jameson and Sir Arthur Evans (as cited in the Jameson catalogue).