Herennius Etruscus. As Caesar, AD 249-251. Æ Sestertius (27mm, 12.10 g, 12h). Rome mint, 2nd officina. 3rd emission of Trajan Decius, AD 250. Bareheaded and draped bust right / PRINCIPI IVVENTVTIS, Herennius standing left, holding baton and spear. RIC IV 171a (Decius); Banti 6. Green patina, some smoothing. VF.