Watch List notes:

L. Calpurnius Piso Frugi, Rome, 90 BC. AR Denarius (19mm, 4.01g, 12h). Laureate head of Apollo r.; T behind, A before. R/ Horseman galloping r., holding palm frond and reins; S below. Crawford 340/1; RSC Calpurnia 11. Good Fine
Estimate: 20 GBP