Herennius Etruscus. As Caesar, AD 249-251. AR Antoninianus (21mm, 3.36 g, 1h). Rome mint, 3rd officina. 3rd-4th emission, early-mid AD 250. Radiate and draped bust right / Sprinkler, simpulum, jug, patera and lituus. RIC IV 143 (Decius); RSC 14. EF, attractively toned.