Watch List notes:

C. Piso L. f. Frugi. AR Denarius, 67 BC. Obv. Head of Apollo right, with fillet; behind, butterfly (?). Rev. Naked horseman galloping right, holding palm-branch; above, scorpion (?); below, C. PISO L.F. FRV. Cr. 408/1b. B.(Calpurnia) 24. Banti 270. AR. g. 4.04 mm. 17.50 Well struck in high relief, brilliant and superb. Enchanting iridescent tone. Good EF.