Constantius II. AD 337-361. Æ Centenionalis (21mm, 4.47 g, 6h). Siscia mint, 2nd officina. Struck AD 350. Pearl-diademed, draped, and cuirassed bust right; A to left, * to right / Constantius standing left, holding labarum and spear, being crowned by Victory standing left; A|–//•BSIS•. RIC VIII 286; LRBC 1173. Green and brown patina, light pitting. Near EF.
Ex Classical Numismatic Group Electronic Auction 487 (10 March 2021), lot 682.
This coin was struck under Vetranio in the name of Constantius II during the turbulent period of Magnentius' revolt in AD 350. The reverse legend ('by this sign you shall conquer') refers to the divinely inspired vision of Constantine the Great before the Battle of the Milvian Bridge, and thus alludes to Vetranio's loyalty to the house of Constantine. Vetranio eventually handed over his legions to Constantius II at Naissus, afterward withdrawing into an honorable retirement at Prusa in Bithynia.