Watch List notes:

L. Calpurnius Piso Frugi. 90 B.C. AR denarius (19 mm, 3.92 g, 9 h). Rome. Laureate head of Apollo right; behind, L; below chin, D / L · PISO [F]RVGI, horseman galloping right, holding palm branch; below, Θ. Crawford 340/1; Sydenham 665a; Calpurnia 11. Toned. Extremely fine.