Watch List notes:

Cn. Lucretius Trio, Denarius, Rome, 136 BC; AR (g 3,95; mm 21; h 12); Helmeted head of Roma r.; behind, TRIO; before, X, Rv. The Dioscuri galloping r.; below, CN LVCR; in ex. ROMA. Crawford 237/1a; Lucretia 1; Sydenham 450.
Large flan, lustrous, about fdc.