Roman Empire. Helena (Augusta, AD 324-328/330). 1/2 Follis Trier mint. PAX PVBLICA, Pax standing left, holding olive branch and scepter ·TRS· in exergue as (No reserve price)

The half follis coin from the Roman Empire featuring Helena, Augusta from AD 324-328/330, minted in Trier, is a notable example of late Roman numismatics. Helena, mother of Emperor Constantine the Great, held significant influence within the empire, symbolized on the coinage that often commemorated imperial family members and conveyed imperial propaganda. This particular coin bears the reverse inscription PAX PVBLICA, representing 'Public Peace,' with the personification Pax standing left, holding an olive branch and scepter – traditional symbols of peace and authority in Roman iconography. The coin's exergue includes the mintmark TRS, denoting its origin from the Trier mint, one of the most prominent Roman mints situated in Germania Inferior. Such coins served both as currency and as a medium to disseminate messages of stability and the emperor’s commitment to peace throughout the empire. Collectors value these coins for their historical context and detailed depictions of imperial figures and symbolism during a transformative period in Roman history.