A rare coin minted by Marcus Junius Brutus after he helped assassinate Julius Caesar will go to auction ... Brutus minted coins such as the silver denarius, which was worth about a day's pay ...

A few centuries later, Julius Caesar was the first Roman leader to have his portrait on a coin while he was still alive, one denarius minted just days before his murder in 44 B.C., the museum said.

In 49 B.C. on the banks of the Rubicon, Julius Caesar faced ... against whom Caesar fought in Gaul. The Parisii minted this second-century B.C. gold coin. Photograph by Erich Lessing/Album Stung ...