Cr. 340/1 L Calpurnius Piso Frugi AR denarius, 90 B.C.
AR Denarius(19.62mm, 3.9g), L. Calpurnius Piso Frugi, 90 BC, Rome Mint. Laureate head of Apollo right; "VIII" behind / L PISO FRVGI, Horseman, holding palm frond and reins, on horse galloping right; VI above, ROMA monogram below. Crawford 340/1, Sydenham 661, Calpurnia 12
This type is one of the largest issues minted during the Roman Republic, with Crawford estimating over 850 obverse dies and over 1000 reverse dies, each with unique control marks. Such a large issue was required because this issue was one of the ones minted to finance the Social War between Rome and its Italian allies. The obverse and reverse of this coin relate to the Ludi Apollinares, games held in honor of the god Apollo which were made permanent by the moneyer's ancestor during his term as Praetor in 211 BC.