Constans. AD 337-350. Æ Half Centenionalis (18mm, 2.81 g, 6h). Siscia mint, 2nd officina. Struck AD 348-350. Pearl-diademed, draped, and cuirassed bust right / Phoenix, radiate, standing right atop rocky mound; ΓSIS (wreath). RIC VIII 232. Green patina, reddish deposit on reverse. Good VF.