Watch List notes:

L. Calpurnius Piso Frugi. 90 BC. AR Denarius (18mm, 3.61 g, 6h). Rome mint. Laureate head of Apollo right; D behind, B before / Horseman, holding palm frond and reins, on horse galloping right; P above. Crawford 340/1; Sydenham 665; Calpurnia 11. VF, toned, porous surfaces, numerous scratches under tone.