Watch List notes:

MACEDON. Terone. Circa 424-422 BC. Tetartemorion (Silver, 7 mm, 0.27 g). T-E Oinochoe to left. Rev. Quadripartite incuse square. Cf. Hardwick Group IV, 14. HGC 3.1, 702 and SNG ANS 755 (but all as hemiobols). A rare denomination. Well-centered. Good very fine.
From the "Collection sans Pareille" of Ancient Greek Fractions.