Volusian Silver Antoninianus, RIC IV Volusian 166

Monetary Context and Mid-Third Century Debasement

The antoninianus designated by RIC IV Volusian 166 belongs to the turbulent monetary environment of the mid-third century AD. Following the death of Decius and Herennius Etruscus at the Battle of Abrittus in mid-251 AD, Trebonianus Gallus assumed the purple and promptly elevated his son Volusian, first to Caesar and shortly thereafter to Augustus. The joint principate confronted severe external pressures along the Danube and Euphrates frontiers, as well as a devastating epidemic known to modern historians as the Plague of Cyprian. Financing the imperial administration, paying military stipends, and securing fragile peace settlements required immense bullion reserves that the treasury struggled to maintain. Under these structural strains, the imperial silver denomination, originally tariffed as a double denarius under Caracalla, continued a prolonged trajectory of debasement. While early Severan antoniniani had contained roughly fifty percent fine silver, issues of Trebonianus Gallus and Volusian typically exhibited silver contents between twenty and thirty-five percent, the remainder being base copper. Although officially circulating as silver coin, these billon pieces were struck on thinner, broader flans and frequently showed a pale grey or lightly silvery finish produced by surface enrichment techniques. The depiction of Aequitas, a personification synonymous with equitable measures and reliable mint standards, presented a deliberate public counterweight to the tangible physical reality of alloy deterioration.

Mint Production and Workshop Organization

RIC IV Volusian 166 was produced at the principal imperial mint situated in Rome. During the joint reign of Trebonianus Gallus and Volusian, the mint of Rome operated using a multi-officina system, generally reconstructed by numismatists as comprising six active operational workshops. Coin production for the two Augusti was carefully coordinated: certain workshops focused upon issues in the name of the elder Augustus, while others produced matching series for Volusian. Unlike later third-century radiates from the reigns of Philip I, Trajan Decius, or Gallienus, coins belonging to RIC IV Volusian 166 do not carry explicit workshop marks, officina letters, or mint signatures in the fields or exergue. Attribution to the urban mint of Rome rests upon rigorous comparative analysis of portrait engraving style, lettering forms, fabric, and hoard composition. The Rome mint employed skilled die-cutters who maintained a consistent, idealized style characterized by neat lettering, well-proportioned facial anatomy, and finely detailed drapery and cuirass elements. This stylistic discipline distinguishes Rome emissions from contemporary provincial branch mints, notably the eastern facility traditionally identified with Antioch, where facial features were rendered with starker, elongated outlines.

Obverse Portraiture and Royal Iconography

The obverse of RIC IV Volusian 166 features the right-facing bust of Volusian depicted in the standard imperial military attire of the mid-third century. He wears a radiate crown, whose prominent triangular spikes extend upward from a jeweled band, symbolizing both solar association and the double denomination of the antoninianus. Beneath the crown, the youthful emperor is shown with short-cropped hair, close-trimmed sideburns, and a relatively smooth facial profile appropriate to his young age upon accession. The bust is systematically draped and cuirassed, viewed from the side or slightly three-quarters forward, presenting a balance of civil majesty and military authority. The drapery folds curve neatly over the shoulder, secured by a brooch, while the protective plates or scales of the cuirass are visible at the chest and neck. The relief is typically moderate, designed for rapid striking on slightly irregular billon planchets. Variations among individual dies reveal subtle artistic differences in the spacing of the crown rays, the fullness of the jawline, and the depth of the drapery folds, yet all adhere to the official imperial archetype established at the Rome workshops.

Reverse Iconography of Aequitas

The reverse iconography of RIC IV Volusian 166 presents Aequitas, the Roman personification of equity, fair dealing, and monetary fairness. She stands draped in a long stola that falls in vertical folds to her feet, facing left in a relaxed contrapposto posture. In her extended right hand, she holds a pair of balancing scales, the quintessential symbol of impartial weight and honesty in financial exchanges. Cradled in her left arm is a brimming cornucopiae, signifying the material abundance, prosperity, and reliable distribution of grain made possible through just governance. While Aequitas and Moneta shared similar attributes on Roman coinage, the accompanying inscription AEQVITAS AVGG confirms the conceptual focus on the broader moral virtue of fairness rather than the administrative entity of the mint itself. In the context of the early 250s AD, this imagery functioned as an explicit reassurance to the Roman populace, the army, and commercial markets that the state remained committed to equitable transactions, despite persistent inflation and metallic adjustments.

Epigraphy and Titulature Analysis

The obverse legend reads IMP CAE C VIB VOLVSIANO AVG, rendered in an unbroken circular format beginning from the lower left and running clockwise around the rim. This formulaic titulature abbreviates Imperator Caesar Caius Vibius Volusianus Augustus. The inclusion of Caius Vibius reflects his family gentilicium shared with Trebonianus Gallus (Caius Vibius Trebonianus Gallus), while the concluding Augustus confirms his constitutional rank as full co-ruler rather than subordinate Caesar. The reverse legend is inscribed as AEQVITAS AVGG, similarly reading continuously around the upper margin. The doubling of the terminal G in AVGG represents the standard Latin epigraphic convention for the plural Augustorum, designating the two Augusti, Gallus and Volusian, who ruled concurrently. The lettering across both dies is executed in clean classical capitals, with sharp crossbars on the letter A and well-rounded curves on the letter C and letter G. The grammatical structure of the reverse legend functions in the nominative case, asserting that equity is actively embodied by both ruling emperors.

Typology and Chronological Placement

Within the typology of the fourth volume of The Roman Imperial Coinage, RIC IV Volusian 166 is catalogued among the regular silver antoniniani produced at Rome during Volusian's tenure as Augustus between late AD 251 and mid-253 AD. The type corresponds to a parallel issue struck simultaneously for Trebonianus Gallus (RIC IV Gallus 31), which features identical reverse imagery and the shared legend AEQVITAS AVGG. This parallelism highlights the coordinated output of the urban officinae, which matched father and son across several central ideological themes. Volusian's Rome coinage can be broadly divided between an initial brief emission as Caesar in late 251 AD and subsequent substantial emissions as Augustus. Because RIC IV Volusian 166 employs the full Augustus title on both faces alongside the plural AVGG reverse, it cannot date to the Caesar period and must fall within the main phase of the joint principate. The emission ran until the summer of AD 253, when the sudden uprising of Aemilian in Moesia prompted Gallus and Volusian to march north from Rome, culminating in their assassination by their own troops near Interamna.

Circulation, Hoards, and Archaeological Context

Antoniniani of the type RIC IV Volusian 166 circulated extensively throughout the territories of the Roman Empire, as evidenced by their consistent presence in mid-to-late third-century coin hoards. Large assemblages discovered in Britain, Gaul, Italy, and the Balkan frontier provinces demonstrate that these coins circulated actively alongside issues of Gordian III, Philip I, Decius, and later Valerian. Because the alloy standard of 251 to 253 AD had not yet reached the severe nadir seen under the sole reign of Gallienus in the 260s AD, these radiates remained valued in circulation for over a decade. However, during the monetary collapse of the late 260s AD, older billon antoniniani from the reigns of Gallus and Volusian were systematically hoarded by citizens who recognized their comparatively higher silver content relative to the nearly pure copper radiates of the post-260 period. Consequently, specimens of RIC IV Volusian 166 are well represented in major deposits such as the Cunetio and Normanby hoards in Roman Britain, showing varying degrees of mechanical wear consistent with one to two decades of active commercial exchange.

References

1. The Silver Coinage of Trebonianus Gallus and Volusian. pp. 63-95
2. Online Coins of the Roman Empire: RIC IV Volusian 166. ric.4.vo.166
3. The Roman Imperial Coinage, Volume IV, Part III: Gordian III to Uranius Antoninus. p. 179, no. 166