Watch List notes:

C. Calpurnius Piso L.f. Frugi, Denarius, Rome, 67 BC; AR (g 3,70; mm 18; h 6); Head of Apollo r., hair tied with band; behind, control symbol, Rv. Horseman r., with palm; below, C PISO L F FRVG / control letter. Crawford 408/1b; Calpurnia 24; Sydenham 851a.
Cabinet tone, extremely fine.