Watch List notes:

Greek Asia. Ionia, Phokaia. AR Diobol, c. 510-494 BC. Obv. Head of Athena (?) left, helmeted. Rev. Incuse square with four fields. SNG Cop. 389-94 (Uncertain); SNG Kayhan 522. AG. 1.18 g. 10.00 mm. Good VF.