Commemorative Series, 330-354. Follis (Bronze, 15 mm, 1.70 g, 6 h), Rome, struck under Constantius II, circa 348. RO-MA Helmeted and draped bust of Roma to right, wearing pearl necklace. 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. (reverse description). Rare. Uncleaned deposits, otherwise, good very fine.