L. Calpurnius Piso Frugi. Denarius, Rome mint, 90 BC. Obv. Laureate head of Apollo right; in the field, control-mark. Rev. Horseman galloping right; above, M; below, L•PISO•FRVGI. Cr. 340/1; B. 6-12 (Calpurnia). 3.77 g. 19.00 mm. Lightly toned. VF.