Watch List notes:

M. Junius Silanus, Denarius, Rome, 145 BC; AR (g 4,19; mm 18; h 9); Helmeted head of Roma r.; before, X; behind, ass head, Rv. The Dioscuri galloping r.; below, M IVNI; in ex. ROMA. Crawford 220/1; Junia 8; Sydenham 408.
Lustrous, about extremely fine.