Herennius Etruscus, Caesar, Antoninianus, 3,60 g., mint of Rome, 250-251 AD.
Obv.: Q HER ETR MES DECIVS NOB C , radiate and draped bust right.
Rev.: PRINCIPI IVVENTV[TIS] , the prince standing, left, in military attire holding baton and transverse spear.
RIC 147c ; C 26 .