Watch List notes:

Hostilian. As Caesar, AD 250-251. AR Antoninianus (25mm, 2.63 g, 6h). Rome mint, 5th officina. 6th-7th emissions of Trajan Decius, AD 251. Radiate and draped bust right / Mars advancing right, holding spear and shield. RIC IV 177b (Decius); RSC 15. A couple of minor edge splits. VF.