Watch List notes:

Cn. Gellius. 138 BC. AR Denarius (18mm, 4.03 g, 7h). Rome mint. Helmeted head of Roma right; X (mark of value) to left; all within laurel wreath / Mars driving galloping quadriga right, grasping Nerio beside him and holding shield; CN•G[EL] below horses; ROM[A] in exergue. Crawford 232/1; Sydenham 434; Gellia 1; Type as RBW 962. EF, iridescent toning.

From the Andrew McCabe Collection, purchased from Artemide Aste at COINEX, London, October 2009.