Watch List notes:

L. Calpurnius Piso Frugi. AR Denarius, 90 BC. Obv. Laureate head of Apollo right; behind, K; below chin, F. Rev. Horseman galloping right, holding palm; above, thyrsus; below, L. PISO FRVGI/G. Cr. 340/1. B. 11. AR. g. 3.90 mm. 18.00 Well centred, brilliant and lightly toned. About EF.