Denarius Calpurnia: Lucius Calpurnius Piso Frugi, L•PISO•FRVGI

Lucius Calpurnius Piso Frugi held the moneyer position around the time of the Social War, when Rome's Italian allies were in open revolt demanding citizenship. The Calpurnia gens traced its name back to a legendary king of Alba Longa, and Piso leaned hard into that ancestry across this issue. RRC 340/1 is notable for the sheer volume of die combinations it generated — Crawford identified well over a hundred obverse dies — making it one of the most extensively documented series of the late Republic.

The control marks and symbols linking specific dies are still not fully reconciled across all major references, which accounts for the unusually wide citation range in CRR and RSC.