Watch List notes:

TROAS, Kebren. Late 6th-early 5th centuries BC. AR Hemidrachm (12mm, 1.92 g). Head of ram left / Quadripartite incuse square. SNG von Aulock –; cf. SNG Ashmolean 1076–7 (obol); cf. SNG Copenhagen 366 (obol); cf. Klein 311–2 (triobol and obol). VF, find patina. Extremely rare denomination.