HISTORICAL NOTE: The Roman bronze As minted during the reign of Emperor Antoninus Pius (138-161 AD) encapsulates a moment of stability and peace in the Roman Empire, often symbolized by the reverse depiction of Pax, the goddess of peace. Struck in a period noted for its relative tranquility following the tumultuous years of civil strife that preceded his rule, this coin reflects the emperor's commitment to maintaining the Pax Romana, or Roman peace. The obverse typically features a draped bust of Antoninus Pius, adorned with a laurel wreath, signaling his divine status, while the reverse commonly presents Pax holding a branch and a scepter, underscoring the ideals of prosperity and security inherent in his administration. The use of bronze as a medium for these coins also highlights the economic practices of the time, wherein denominations like the As served as essential currency for everyday transactions, striking a balance between the imperium's might and the ordinary Roman citizen's life. This coin thus serves both as a monetary object and a historical artifact, illustrating the values and stability of Antoninus Pius's reign.