Watch List notes:

Western Asia Minor, uncertain mint AR Hemidrachm(?). Circa 480-450 BC. Helmet to left / Quadripartite incuse square. Cf. SNG Kayhan 743 (Ionia or Karia - obol); cf. Rosen 109 (Skione in Macedon - obol). 2.06g, 10mm.

Very Fine. Apparently unpublished in this denomination.

From the inventory of a UK dealer.