Watch List notes:

L. Calpurnius Piso Frugi. 90 BC. AR Denarius (19mm, 3.86 g, 9h). Rome mint. Laureate head of Apollo right; S below chin / Horseman galloping right, holding whip and reins; mask of Silenus above. Crawford 340/1; Sydenham 658a; Calpurnia 12b; CNR Calpurnia 39/1. VF, some light scratches. Rare symbol.