Watch List notes:

M. Aurelius Cotta. 139 BC. AR Denarius (17mm, 3.70 g, 6h). Rome mint. Helmeted head of Roma right, wearing necklace of beads; X (mark of value) to left / Hercules driving biga of centaurs right; centaurs each carrying a branch. Crawford 229/1a; Sydenham 429; Aurelia 16; RBW 958. Lightly toned with light deposits in the devices, a few marks. VF.

From the Raintree Collection.