Watch List notes:

Herennius Etruscus. As Caesar, AD 249-251. AR Antoninianus (21mm, 3.69 g, 12h). Rome mint, 1st officina. 3rd emission of Trajan Decius, early-mid AD 250. Radiate and draped bust right / Mercury standing left, holding purse and caduceus. RIC IV 142b (Decius); RSC 11. Toned, reverse die wear. Good VF.