Note: very rare reverse type struck only at Siscia only during the brief first emmission, inherited from Florian.
REVERSE: SECVRITAS SAECVLI; Securitas seated left, holding sceptre; left hand raised to head
BUST TYPE: A2 = Radiate, draped and cuirassed bust right, seen from back
FIELD / EXERGUE MARKS: -/A//XXI
WEIGHT 3.78g / AXIS: 12h / WIDTH:22-23mm