Watch List notes:

CELTIC, Central Europe. Vindelici. Circa 2nd-1st century BC. Quarter stater or 'Glattes Regenbogenschüsselchen' (Gold, 13 mm, 1.41 g). Almost obliterated celticized male head, with large eye still visible. Rev. Cross within an empty concave surface. De la Tour 9454. Dembski 464. Kastelin 1085. Kellner type V A 2158. Rare and nicely centered. Some minor edge splits, otherwise, good very fine.
From the Cologny Collection.