Kebren, Troas, AR diobol. 5th century BC. 9 mm, 1.01 g. 

KEBR (or KEBRE) beneath ram's head right.
Quadripartite incuse square. 

With KEBR: BMC 3-6; Jameson 1454; SNG Cop 254; McClean 7804; Weber 5343-5345; Boston I 1630-1631; SNG Tuebingen 2623-2624; SNG Delepierre 2550; Rosen 530. With KEBRE: BMC 7-10; SNG Fitz. 4285; SNG Berry 982-983; SNG Lockett 2735; Lockett coll. 2210; Pozzi 2272