Watch List notes:

SICILY. Leontinoi. Circa 476-466 BC. Pentonkion (Silver, 7 mm, 0.28 g). Lion's head with open jaws to right. Rev. Five pellets. Boheringer, Münzgeschichte, pl. 10, 17. Buceti 12. Rare. Clear and well-centered. Dark patina as found. Good very fine/extremely fine.
From the "Collection sans Pareille" of Ancient Greek Fractions, ex Münzen und Medailen FPL 494, November-December 1986, 15.