Commemorative Series, 330-354. Follis (Bronze, 17 mm, 2.45 g, 6 h), Rome, struck under Constantius II, circa 348. Helmeted, draped and cuirassed bust of Roma to right. Rev. P - R Virtus standing front, head to right, holding inverted spear in her right hand and placing her left on shield set on ground. RIC 104 corr. (Virtus not emperor standing on reverse). Rare and unusually attractive. Thin flan crack and with a minor scratch on the obverse, otherwise, good very fine.