Roman Empire, Herennius Etruscus, as Caesar, AV Aureus, AD 250-251, Rome mint

Obv. Q HER ETR MES DECIVS NOB C, bare-headed and draped bust right.

Rev. PRINCIPI IVVENTVTIS, Herennius standing left, holding rod and spear. 

Gold, 4,06 g, 19,5 mm. RIC 147a; Cohen 25; Sear 9514. Good Very Fine.