Commodus Orichalcum Sestertius, RIC III Commodus 528

Monetary Context and Denominational Function

During the reign of Commodus, the sestertius remained the flagship base-metal denomination of the imperial monetary system created under Augustus. Valued at one quarter of a silver denarius or four copper asses, the sestertius was cast and struck in orichalcum, a golden-toned copper-zinc alloy that distinguished it visually and metallurgically from the red copper asses and semisses. Because of its generous module and physical weight, which averaged approximately twenty-five grams in the late Antonine period, the denomination was widely used across Italy and the western provinces for market transactions, military payroll disbursements, and tax accounting. The fiscal stresses of the late second century AD, characterized by rising state expenditures, debasement of the silver coinage, and domestic political instability, did not diminish the volume of large brass output. Instead, issues such as RIC III Commodus 528 served as high-visibility vehicles for imperial propaganda, broadcasting titles and religious programs directly to urban populations across the empire where high-value gold and silver coins were less commonly encountered in daily petty trade.

Mint Location and Manufacturing Technique

The entire production of regular base-metal coinage bearing the senatorial formula S C in this era was concentrated at the imperial mint of Rome. Operating under the administrative oversight of the imperial procurator monetae alongside senatorial authorization, the Rome mint organized its striking operations into multiple officinae or workshops. Blanks for the sestertii were cast in open or two-part molds, producing thick, circular flans that were often slightly irregular in circumference before being brought up to striking temperature. Dies were engraved by hand from prepared iron hubs or directly incised with hardened steel tools. Die alignment for RIC III Commodus 528 generally adheres to the standard vertical or near-vertical axis typical of the Antonine mint of Rome, normally exhibiting an orientation around twelve o'clock or six o'clock. The striking was executed with heavy two-handed hammers, resulting in substantial relief on the obverse portrait and reverse figures, accompanied by characteristic radial flow lines along the perimeter of the flan.

Obverse Iconography and Imperial Image

The obverse of RIC III Commodus 528 presents a right-facing, laureate head of Commodus. The portrait represents the emperor in his late twenties, captured in the mature, full-bearded late Antonine style characterized by deeply drilled, cascading curls in the hair and beard, heavy eyelids, and a prominent nose. The laurel wreath rests upon the crown of the head, tied at the nape with ribbons that drape gracefully onto the lower neck. This numismatic portraiture represents a continuation of the philosophical Antonine aesthetic established by his father Marcus Aurelius, yet infused with an increasingly autogenous and divine heroic imagery. The modeling of the neck and facial musculature conveys solemnity and imperial authority, reflecting Commodus's elevated position as supreme commander and sole ruler following the death of Marcus Aurelius in AD 180.

Reverse Design: Minerva Victrix

The reverse composition is devoted to Minerva Victrix, Minerva the Victorious, a deity who occupied an especially exalted role in the private and public religious devotions of the Roman imperial house. Minerva stands facing toward the left, garbed in a long, draped chiton with an aegis or peplos and crowned with a Corinthian helmet. In her extended right hand she supports a small statuette of winged Victory, who advances toward her extending a triumphal wreath. In her left hand, Minerva grasps an upright spear, symbol of martial readiness. Resting against the ground to her left is a circular round shield, while to her right stands a fully dressed military trophy composed of captured provincial arms and armor. The letters S and C flank the figure in the lower fields to denote Senatus Consulto. The complex iconography synthesizes wisdom, divine protection, and triumph, projecting the notion that all imperial victories stemmed from divine favor and tactical intelligence.

Epigraphy and Titulature Analysis

The inscriptions on RIC III Commodus 528 provide crucial epigraphic evidence for dating and ideological analysis. The obverse legend reads M COMMODVS ANT P FELIX AVG BRIT, which expands as Marcus Commodus Antoninus Pius Felix Augustus Britannicus. The inclusion of FELIX represents a pivotal moment in imperial titulature, officially adopted around AD 185 to advertise the emperor's divinely bestowed good fortune. The cognomen BRIT commemorates the suppression of the northern British uprisings concluded early in his reign. The reverse legend, MINER VICT P M TR P XIIII IMP VIII COS V P P S C, combines the religious dedication MINER[VA] VICT[RIX] with the emperor's formal magistracies: Pontifex Maximus, holder of the Tribunician Power for the fourteenth time (TR P XIIII), acclaimed Imperator eight times (IMP VIII), Consul five times (COS V), and Father of the Fatherland (P P), accompanied by the decree of the Senate (S C). The epigraphy is neatly executed in classical Roman square capitals, tightly curving around the beaded borders.

Typological Classification and Chronological Placement

Catalogued as type 528 in the third volume of Roman Imperial Coinage, this coin belongs precisely to the minting period spanning the tribunician year TR P XIIII, which ran from late autumn AD 188 through autumn AD 189. This period coincided with the eighth imperial acclamation and the fifth consulship of Commodus. The emission belongs to an expansive suite of aes issues struck under the political ascendancy of the praetorian prefect Cleander, during which the regime aggressively promoted deities of security, fortune, and victory to reassure the populace amidst grain shortages and civil unrest. The Minerva Victrix type was produced across multiple denominations, including the silver denarius and base-metal divisions, but the sestertius provided the most elaborate sculptural field for the inclusion of both the shield and the trophy alongside the goddess.

Circulation Patterns and Archaeological Evidence

Sestertii of Commodus struck between AD 180 and 192 circulated extensively throughout the western provinces, including Roman Britain, Gaul, the Rhine frontier, and the Danubian garrison provinces, as well as the Italian peninsula. Because bronze and brass coinage possessed high transactional utility, pieces like RIC III Commodus 528 frequently remained in active circulation for several decades, often circulating well into the third century AD alongside issues of the Severan dynasty. Archaeological site finds and hoards indicate that these large base-metal coins experienced heavy mechanical wear, often showing significant smoothing on high-relief elements such as the wreath, hair curls, and reverse trophy. The durability of orichalcum ensured that even worn specimens retained recognizable silhouettes, enabling their continued acceptance in regional markets long after the ideological circumstances of their initial striking had passed.

References

1. Coins of the Roman Empire in the British Museum, Volume IV: Antoninus Pius to Commodus. pp. 815-818
2. The Roman Imperial Coinage, Volume III: Antoninus Pius to Commodus. p. 429, no. 528
3. Online Coins of the Roman Empire: RIC III Commodus 528. ric.3.com.528
4. Roman Silver Coins, Volume II: Tiberius to Commodus. Commodus, TR P XIIII
5. Die Muenzpraegung des Kaisers Commodus (MIR 18). MIR 18, nos. 753-755