EID MAR denarius
BC 43–42 ・ silver ・ 1st century BC ・ The camp of Brutus

Issued by Brutus, who assassinated Caesar. The Phrygian cap that means liberty, two daggers, and the legend 'EID MAR' — the Ides of March, 15 March, the day of the killing. Setting his own face beside the day he struck down a dictator makes this the most political coin in history.
Diameter 19mm