Watch List notes:

AKARNANIA. Stratos. Circa 425-400 BC. Triobol (Silver, 14 mm, 2.22 g, 9 h). Bearded taurine head of Achelöos facing slightly to left. Rev. Σ-T[RA] (retrograde) Head of Kallirhoë facing slightly to left; all within incuse square. BCD Akarnania 356 (same dies?). Cf. HGC 4, 909 (drachm). Very rare. Porous, otherwise, very fine.