Derrones, AR obol. 0.75 grams, 10.59 mm. Thracian-Macedonia. 5th century BC.  

Bull right, head turned back; three dots in fields.
Flat, quadripartite incuse square. 

Svoronos: L’hellénisme primitif de la Macédoine, plate 2, 22.

With permission of TimeLine Originals (www.time-lines.co.uk), November, 2013