L. Calpurnius Piso Frugi. 90 BC. AR Denarius (17mm, 3.99 g, 10h). Rome mint. Laureate head of Apollo right; prow behind / Horseman galloping right, holding palm frond and reins; XXXI below. Crawford 340/1; Sydenham 663b; Calpurnia 11. EF, lightly toned, very bold example !!!