Watch List notes:

M. Carbo. 122 BC. AR Denarius (17mm, 3.89 g, 5h). Rome mint. Helmeted head of Roma right; laurel branch to left, X (mark of value) below chin / Jupiter driving galloping quadriga right, hurling [thunderbolt] and holding scepter and reins. Crawford 276/1; Sydenham 423; Papiria 6. VF, toned, banker's marks on the reverse.