Herennius Etruscus as Caesar (249-251 AD). AR Antoninianus. D/ Q HER ETR MES DECIVS NOB C. Radiate and draped bust right. R/ PRINCIPI IVVENTVTIS. Herennius standing left, holding baton and spear. RIC (Decius) 147c. AR. g. 3.95 mm. 22.00 Superb, brilliant and lightly toned. EF.