Watch List notes:

L. Calpurnius Piso L.f. L.n. Frugi, Quinarius, Rome, 90 BC; AR (g 2,13; mm 15; h 12); Laureate head of Apollo r.; behind, control symbol, Rv. Victory standing r., holding wreath, palm branch and sword; on either side, L [PI] - SO; in ex. FRVGI. Crawford 340/2e (s. 15); Calpurnia 13; Sydenham 672.
Lustrous, about extremely fine - extremely fine.