Watch List notes:

AKARNANIA. Leukas. Circa 350-320 BC. Trihemiobol (Silver, 10.5 mm, 0.67 g, 9 h). Λ Pegasos, with straight wing, flying to left. Rev. Σ Gorgoneion, of late Classical style, facing. Apparently unpublished save for its previous auction appearance). BCD Akarnania -. Cf. HGC 4, 851. Very rare. Clear and well-centered. Obverse somewhat corroded, otherwise, very fine.
From the "Collection sans Pareille" of Ancient Greek Fractions, ex Roma 4, 30 September 2012, 115.