Gallienus. AD 253-268. Antoninianus 22mm, 4.01 g. Antioch

During the height of the Third Century Crisis, Gallienus (AD 253–268) held the Roman Empire together amid invasions, economic decline, and breakaway regions like the Gallic Empire. Initially co-emperor with his father Valerian, Gallienus became sole ruler following Valerian’s capture by the Persian king Shapur I.

Despite overwhelming challenges, Gallienus launched crucial military reforms and supported the empire’s defense. His reign is also remembered for its distinctive and abundant coinage, often highlighting deities such as Jupiter, Apollo, and Diana. These coins served not only as currency but also as a medium of imperial propaganda in a time of constant threat.