Watch List notes:

Ionia, uncertain mint AR Tetartemorion. 5th century BC. Corinthian helmet to left / Quadripartite incuse square. Nomos obolos 22, 370; cf. Rosen 109 (Skione; obol); cf. SNG Kayhan 743 (obol). 0.28g, 5mm.

Very Fine. Extremely Rare.

From the inventory of a German dealer.