Watch List notes:

L. Calpurnius Piso Frugi. 90 BC. AR Denarius (18mm, 3.81 g, 12h). Rome mint. Laureate head of Apollo right; mark of value behind, L below chin / Horseman galloping right, holding palm frond and reins; V above. Crawford 340/1; Sydenham 671; Calpurnia 11a. VF, toned, flatly struck on obverse.