Watch List notes:

SWITZERLAND. Celtic. Helvetii. Scyphate electrum Stater, late 2nd / early 1st century BC. Obv. Laureate head of Apollo left, four dots tatooed on his cheek. Rev. Biga driven right, triskeles between legs. Allen SNR 53 (1974), 63; DT 3073; LT 8897. AU. 6.70 g. UNC
Of a remarkable quality and style, all the details of the engraving being visible, including the tatoo on Apollo's cheek. This coin is maybe part of the first series of this type of Staters, whose quality of engraving and strike decreases with time.