Watch List notes:

Herennius Etruscus. As Caesar, AD 249-251. AR Antoninianus (23mm, 3.97 g, 12h). Rome mint, 3rd officina. 3rd-4th emissions of Trajan Decius, AD 250. Radiate and draped bust right / Emblems of the pontificate: aspergillum, simpulum, guttus, patera, and lituus. RIC IV 143 (Decius); RSC 14. Lightly toned, minor deposits. Near EF. Well defined borders.

From the John L. Cowan Collection, purchased from Pegasi, 27 March 2004.