Watch List notes:

L. Calpurnius Piso L.f. L.n. Frugi, Denarius, Rome, 90 BC; AR (g 3,99; mm 19; h 9); Laureate head of Apollo r.; before and behind, control letter, Rv. Horseman galloping r., holding palm branch; below, L PISO FRVG / control letter. Crawford 340/1; Calpurnia 11; Sydenham 665a.
Dark patina, extremely fine.