Watch List notes:

M. Junius Silanus, Denarius, Rome, 145 BC; AR (g 3,58; mm 19; h 6); Helmeted head of Roma r.; before, X; behind, ass's head, Rv. The Dioscuri galloping r.; below, M IVN[I]; in ex. ROM[A]. Crawford 220/1; Junia 8; Sydenham 408.
Lightly toned, good very fine.