Watch List notes:

C. Calpurnius Piso L.f. Frugi, Denarius, Rome, 67 BC; AR (g 3,86; mm 18; h 5); Head of Apollo r., hair tied with band; behind, control symbol, Rv. Horseman galloping r., holding palm branch; below, C PISO L F FRVG / control symbol. Crawford 408/1b; Calpurnia 24; Sydenham 851j.
Lightly toned, extremely fine.