Watch List notes:

L. Calpurnius Piso Frugi, Rome, 90 BC. AR Denarius (20mm, 3.89g, 12h). Laureate head of Apollo r.; D behind and before. R/ Horseman galloping r., holding palm frond and reins; control below. Crawford 340/1; cf. RBW 1257; RSC Calpurnia 11. Small scratch on rev., VF