Watch List notes:

IONIA. Kolophon. late 6th century BC. Obol (Silver, 8 mm, 0.88 g). Archaic head of Apollo to left. Rev. Quadripartite incuse square. Isegrim -. Cf. Rosen 386-7 (Tetartemorion). Cf. SNG Kayhan 342 (Hemiobol). Very fine.