Watch List notes:

CELTIC COINS
Britain

Northwest Gaul. Caleti. c. late 2nd - 1st century BC. Hemistater (Electrum, 15mm, 3.11 g 9), in the area of modern Fécamp. Laureate head of Apollo to right, in Celtic style with curly locks, and with traces of a wheel-shaped tattoo on his cheek. Rev. Charioteer, wearing robes, with long hair and holding a leaf-tipped spear, driving 'biga' drawn by a single horse, to right; to right, floral ornament in place of the second horse; below, eight-spoked wheel. BN 10198 var. D&T 101 var. Flesche 191 (same obverse die but different reverse). An attractive piece with a particularly clear reverse. Very fine.

From the Cologny Collection and from the collection of E. Karl, UBS 77, 9 September 2008, 87, acquired in Munich in 1999.
For similar examples, struck from the same obverse die, see Peus 369, 2001, 37 and Flesche 191. That coin was ascribed to either the Sequani or the Helvetii and has a very similar charioteer on the reverse (he has the same long hair and leaf-tipped spear), but the whole type is to left and the wheel below the horse has a double rim.