Watch List notes:

L. Calpurnius Piso L.f. L.n. Frugi, Denarius, Rome, 90 BC; AR (g 4,01; mm 19; h 1); Laureate head of Apollo r.; behind, control numeral, Rv. Horseman galloping r., holding palm branch; below, L PISO FRVGI / ROMA in monogram; above, control numeral. Crawford 340/1; Calpurnia 12; Sydenham 661.
Cabinet tone, large flan. Die break on reverse, good extremely fine.