Watch List notes:

M. Aurelius Cotta. 139 BC. AR Denarius (18.5mm, 3.85 g, 4h). 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. Toned, a few light scratches and marks. Near VF.

Ex Classical Numismatic Group Electronic Auction 112 (13 April 2005), lot 179.