Watch List notes:

L. Calpurnius Piso L.f. L.n. Frugi, Denarius, Rome, 90 BC; AR (g 3,90; mm 19; h 12); Laureate head of Apollo r.; behind, control letter; before, control letter, Rv. Horseman galloping r., holding palm-branch; below, L PISO FRVGI / control letter. Crawford 340/1; Calpurnia 11; Sydenham 665a.
Lightly toned, minor die shift on obverse, good extremely fine.