Watch List notes:

Cn. Gellius, 138 BC. Denarius (Silver, 19 mm, 4.11 g, 2 h), Rome. Helmeted head of Roma to right; X behind; all within laurel wreath. Rev. CN · GEL / ROMA Mars driving galloping quadriga right, grasping Nerio beside him with right arm and holding shield on left. Babelon (Gellia) 1. Crawford 232/1. Sydenham 434. Attractively toned. Very fine.
From the W. F. Stoecklin Collection, Amriswil, Switzerland, acquired from X&F. Calicó, Barcelona, in 1956.