M. Junius Silanus. 145 BC. AR Denarius (16mm, 3.40 g, 7h). Rome mint. Helmeted head of Roma right; to left, head of ass left; X (mark of value) to lower right / The Dioskuri on horseback riding right, each holding transverse spear. Crawford 220/1; Sydenham 408; Junia 8. EF, lightly toned.