Obverse Legend
ANTONINVS
Antoninus — the emperor’s adopted name
AVG
Augustus — “The Revered One”
PIVS
Pius — “The Dutiful” — honorific granted by the Senate for his devotion to his adoptive father Hadrian
P P
Pater Patriae — Father of the Fatherland
TR P
Tribunicia Potestas — Holder of tribunician power
COS III
Consul III — Consul for the third time
Obverse Image
Laureate head of Antoninus Pius facing right. The laurel wreath marks his imperial authority. His reign (AD 138–161) is remembered as one of the most peaceful and prosperous periods in Roman history.
Reverse Legend
SECVRITAS
Securitas — the Roman personification of security and stability
PVBLICA
Publica — “Public” or “of the People” — emphasizing that this security belonged to all Roman citizens
Reverse Image
Securitas seated left on a throne, holding a scepter. This personification represented the internal stability and freedom from anxiety that characterized the reign of Antoninus Pius — the height of the Pax Romana.
Historical Context
Antoninus Pius (AD 138–161) presided over what many historians consider the zenith of the Roman Empire. His 23-year reign was remarkable for its peace and stability — he never left Italy, and the empire faced no major wars or crises. The Securitas (Security) type on this coin perfectly captures the era: a personification of freedom from anxiety, reflecting Rome at its most confident. Antoninus earned the title "Pius" for his devotion to his adoptive father Hadrian. His reign was so uneventful that the historian Cassius Dio noted there was simply nothing dramatic to record — which, for Rome, was the highest possible praise.
