Watch List notes:

TROAS. Neandria. Late 6th-5th century BC. Obol (Silver, 8 mm, 0.71 g). Crestless Corinthian helmet to left. Rev. Quadripartite incuse square. Rosen 109 (but as Skione in Macedonia). SNG Arıkantürk 664-665 (Neandria). SNG Kayhan 743 (uncertain Ionia or Caria). Well-centered and with a dark patina as found. Some earthen deposits as found, otherwise, about extremely fine.
From the "Collection sans Pareille" of Ancient Greek Fractions, and from the collection of L. Mildenberg.

The attribution of this coin, and other 'helmet' issues, to Neandria was made by O. Tekin and A. Erol-Özdizbay on the basis of findspots provided by Ö. Arıkantürk.