Watch List notes:

L. Calpurnius Piso Frugi, 90 BC. Denarius (Silver, 19mm, 4.17 g 5), Rome. Laureate head of Apollo to right; behind, axe; before, I. Rev. L PISO FRVGI / T Horseman galloping right, holding palm-branch and reins; above, trident. Babelon (Calpurnia) 11. Crawford 340/1. Sydenham 669f. Extremely fine.