Watch List notes:

L. Calpurnius Piso Frugi. AR Denarius, 90 BC. Obv. Laureate, head of Apollo right; behind, poppy-head. Rev. Horseman galloping right, holding palm; below, L. PISO FRVGI/ fractional. Cr. 340/1. B.11. Banti-. AR. g. 4.00 mm. 18.00 Good metal and full weight. Very rare control mark. Brilliant and nicely toned. EF.