Gallienus

Gallienus ruled for fifteen years through the deepest crisis the empire had ever faced, fighting off usurpers, barbarian invasions, and the breakaway Gallic and Palmyrene empires. Despite these challenges, he reformed the military by creating a mobile cavalry force and showed genuine intellectual and artistic interests.

Gallienus's military reforms, particularly the creation of a mobile cavalry reserve, laid the groundwork for the recovery under the Illyrian emperors. His exclusion of senators from military commands was a permanent structural change that fundamentally altered the nature of the Roman officer class.

Key Events

Coinage

Gallienus's coinage is the most abundant of any third-century emperor, with an immense series of antoniniani struck across multiple mints. The silver content had collapsed to a thin wash over bronze by the end of his reign. His sole-reign 'zoo series' depicting animals sacred to various gods is a popular collecting area.

Collecting Guide

Gallienus is the most affordable way to build a large, varied Roman coin collection. His antoniniani were struck in enormous quantities across multiple mints (Rome, Milan, Siscia, Antioch, and uncertain eastern mints), and common types can be found for pocket change. The 'zoo series' (antoniniani depicting animals sacred to various gods (stag for Diana, goat for Jupiter, centaur for Apollo, griffin for Apollo, hippocamp for Neptune)) is the signature collecting area and makes an attractive display set. Mint attribution is a key skill: Rome, Milan, and Siscia used different officina marks and portrait styles. The joint types with empress Salonina and the earlier joint-reign types with Valerian form distinct subsets. Because the silver content had collapsed by this period, most Gallienus antoniniani are effectively bronze: condition matters less than for earlier silver, and sharp, well-struck examples stand out dramatically. RIC V.1 is the standard reference, supplemented by Goebl's MIR series.

Market Overview

Common Gallienus antoniniani sell for $5–30, making them among the cheapest ancient Roman coins on the market. The zoo series types command modest premiums at $15–60 for sharp examples. Scarcer mint-mark variants (eastern mints, unusual officinae) can reach $50–150. Gold aurei are genuinely rare for Gallienus and start at $8,000–15,000 when they appear. The affordability of Gallienus coinage makes it ideal for new collectors learning attribution skills: you can acquire dozens of types for the price of a single Augustan denarius, building familiarity with legends, mint marks, and portrait styles.

Related Resources

Further Reading

• Roman Imperial Coinage, Volume V, Part 1, Percy H. Webb
• Coinage in the Roman Economy, 300 B.C. to A.D. 700, Kenneth W. Harl