Watch List notes:

L. Calpurnius Piso L.f. L.n. Frugi, Denarius, Rome, 90 BC; Ag 3,61 g; Laureate head of Apollo r.; before and behind, control letter, Rv. Horseman galloping r., holding palm branch; above, control symbol; below, L PISO FRVGI / control letter.
Good very fine
Crawford 340/1
MBC+