Constantine I. AD 307/310-337. Æ Follis. Siscia mint, 4th officina. Struck circa early AD 313. RIC VI 234c. CONSTANTINVS PF AVG. Laureate, draped, and cuirassed bust right IOVI CONSERVATORI AVG CNN . Jupiter standing left, holding Victory and scepter; to left, eagle standing left, head right, holding wreath in beak; Δ SIS.
IOVI CONSERVAT (or) AVG (usti) (лат. — «Юпитер хранитель Августа»)