Watch List notes:

C. Piso L.f. Frugi, Rome, 61 BC. AR Denarius (18mm, 3.47g, 6h). Head of Apollo r., wearing taenia; flamen's cap to l. R/ Naked horseman galloping l., holding long palm; uncertain control above. Crawford 408/1; cf. RBW 1459-61; RSC Calpurnia 24. Toned, VF