Watch List notes:

IONIA. Uncertain. Circa 550-500 BC. Tetartemorion (Silver, 6 mm, 0.23 g). Head of a calf to left. Rev. Quadripartite incuse square. Cf. Leu 3 (2018), 97 (obol) and Naumann 37 (2015), 225 (hemiobol). Very rare. Very fine.