Celtic, Rhine Valley Area. Circa 1st Century BC. AV Stater, 7.21 g. Regenbogenschüsselchen. 

Hawk's head with dots within a wreath-like torc with dots-in-ring ends.
Pyramid of four dots within torc with dots at the ends; lines along one edge. 

De la Tour 9433; Allen-Nash 155. 
Rare early type.

With permission of cngcoins.com, auction 46, Lot 19, June 1998