Herennius Etruscus. As Caesar, AD 249-251. Æ Sestertius (28.5mm, 15.55 g, 11h). Rome mint, 1st officina. 3rd emission of Trajan Decius, AD 250. Bareheaded and draped bust right / Mercury standing left, holding purse and caduceus. RIC IV 167a (Decius) corr. (bust type); Banti 1. Dark brown patina with patches of red, some smoothing, rough reverse. VF.