Watch List notes:

L. Calpurnius Piso Frugi. 90 BC. AR Denarius (19mm, 3.69 g, 1h). Rome mint. Laureate head of Apollo right; Q behind, A below chin / Horseman galloping right, holding palm frond and reins; F(?) below. Crawford 340/1; Sydenham 665a; Calpuria 11. Good VF, lightly toned, some luster, metal and die flaws.

From Group SGF.