Commodus Bronze Sestertius, RIC III Commodus 614Aa

Monetary Context and Denominational Role

During the late second century AD, the Roman monetary system rested upon the reformed bimetallic and base-metal framework consolidated under the Julio-Claudian and Flavian dynasties. Within this hierarchy, the sestertius stood as the premier large-denomination token coin struck in orichalcum or bronze. Valued at one-fourth of a silver denarius and containing four copper asses, the sestertius performed an indispensable function in daily urban transactions, municipal payments, and state expenditures within the capital. Because of its broad diameter and substantial surface area, the denomination also served as the primary canvas for elaborate imperial propaganda, conveying complex architectural, ideological, and ritual scenes to a wide civilian audience. By AD 192, economic strains, debasement of the silver denarius, and rising state costs had begun to affect monetary stability across the empire. The bronze coinage, however, maintained a relatively stable weight standard, with sestertii of the period typically struck between 20 and 26 grams on cast or wrought blanks. The issue represented by RIC III Commodus 614Aa highlights the degree to which ceremonial and religious concerns dominated the final emissions of Commodus. Rather than advertising military victories or general civic concord in customary terms, the coin projects the ruler into direct communion with major mystery deities, reflecting the heightened ideological experimentation of the Roman state during this turbulent period.

Production Standards and the Rome Mint

The entire regular production of imperial sestertii bearing the name of Commodus took place at the centralized imperial mint in Rome. Operating under the administrative oversight of the rationalis and equestrian procurators, the mint employed skilled die-cutters, flan-casters, and striking teams organized into specific officinae. Dies for large base-metal coins demanded exceptionally high relief and careful composition, particularly when rendering complex narrative groups such as the four-figure scene found on RIC III Commodus 614Aa. Flans for sestertii in this era were cast in open or two-piece molds using a copper alloy that historically favored orichalcum (a copper-zinc brass), though compositional analyses indicate that late Antonine bronzes frequently incorporated recycled metal, resulting in ternary or quaternary alloys containing variable amounts of tin, lead, and zinc. Blanks were struck hot between heavy iron dies using sledgehammers. The letters S C (Senatus Consulto) positioned on the reverse reflect the enduring constitutional formula affirming that bronze denominations were produced under senatorial authority, even as practical control resided entirely with the imperial court and mint administrators.

Obverse Iconography and Imperial Portraiture

The obverse of RIC III Commodus 614Aa portrays the laureate head of Commodus facing right. In accordance with the catalogue definition of subtype 614Aa, the portrait consists of the head alone, terminating at the neck truncation without drapery or cuirass, differentiating it from related catalogue entries that display draped or cuirassed busts. Late portraits of Commodus from AD 191 and 192 exhibit a pronounced stylistic shift compared to his youthful Antonine issues. The emperor is shown with heavy facial features, deep-set eyes, and an elaborate, deeply drilled arrangement of hair curls and a mature beard. The laurel wreath rests securely upon his head, tied at the nape with ribbon ends hanging downward. This mature visual identity reinforced the sovereign's imperial dignity while aligning with his increasingly grandiose self-presentation in monumental sculpture, where he was celebrated simultaneously as the reincarnated Antoninus, the founder of a refounded Rome (Colonia Lucia Annia Commodiana), and the living avatar of Hercules Romanus.

Reverse Iconography and Religious Symbolism

The reverse design of this sestertius is among the most elaborate multi-figure compositions in late second-century imperial numismatics. At the center of the scene stands a burning sacrificial altar. Commodus stands to the left in the traditional dress of a Roman magistrate and pontifex, wearing the toga. He extends his right hand across the altar in the gesture of dextrarum iunctio, clasping hands with the Egyptian deity Serapis, who stands opposite him facing right. Serapis is recognizable by his classical drapery and divine stature. Standing behind Serapis is the goddess Isis, depicted holding a sistrum, the sacred rattle associated with her ecstatic and protective rites. Behind the emperor, a winged Victory approaches to place a laurel wreath upon his head. This synthesis of Roman ritual and Alexandrian religion constitutes a remarkable political statement. The dextrarum iunctio typically symbolized civic harmony, marital union, or formal political alliances between co-emperors. Applied here between the reigning emperor and Serapis, it signals direct divine companionship and mutual recognition. The presence of Isis reinforces themes of cosmic renewal, healing, and imperial abundance, while Victory guarantees that the emperor's religious alliance brings triumph to the state. The composition documents the complete integration of the Isiac cult into imperial ceremonialism during Commodus's final year, moving beyond mere private devotion into formal state propaganda.

Epigraphy and Titulature

The obverse inscription on RIC III Commodus 614Aa reads L AEL AVREL COMM AVG P FEL, an abbreviation for Lucius Aelius Aurelius Commodus Augustus Pius Felix. This formulation captures the official imperial nomenclature adopted after Commodus reorganized his titles in AD 191, prominently reviving the praenomen Lucius and the gentile name Aelius to assert his descent through the adoptive Antonine line while retaining the honorary epithets Pius (Pious) and Felix (Fortunate). The reverse inscription continues the official protocol: P M TR P XVII IMP VIII COS VII P P S C. The epigraphic sequence records his status as Pontifex Maximus (P M), the holder of tribunician power for the seventeenth time (TR P XVII), imperator by acclamation for the eighth time (IMP VIII), consul for the seventh time (COS VII), and Pater Patriae (P P), Father of the Country. Flanking the lower design field or in the exergue, S C denotes Senatus Consulto. The precision of the imperial numbering provides an incontrovertible chronological anchor, as the seventeenth tribunician renewal began in late AD 191 and spanned through AD 192 until the emperor's death on December 31 of that year.

Typology and Chronological Placement

RIC III Commodus 614Aa belongs to the culminating emission of bronze coinage produced during the closing months of AD 192. Within the cataloguing structure of Roman Imperial Coinage, type 614 encompasses several closely related portrait treatments that share the identical reverse narrative. Subtype 614Aa specifically isolates specimens featuring the bare neck with laureate head facing right, whereas neighboring varieties record busts with drapery or cuirassing on the shoulder. Chronologically, this issue coincides with the period when Commodus increasingly detached himself from traditional senatorial conventions and promoted his personal divine protection through public ritual. In AD 192, Commodus held his seventh consulship alongside Pertinax, who would ultimately succeed him after his assassination on New Year's Eve. The Serapis and Isis sestertii represent a localized group within the extensive TR P XVII coinage, likely struck in connection with specific imperial celebrations or the official introduction of new vows linking the imperial house with the Alexandrian deities. Because the issue was produced late in AD 192, its production window was brief, terminating abruptly with the emperor's murder and the subsequent damnatio memoriae enacted against his monument inscriptions and portraits.

Circulation, Monetary Function, and Preservation

As base-metal currency, sestertii of Commodus entered wide circulation across the Italian peninsula and the western provinces, where bronze coinage remained essential for commercial markets, tax remittances, and small-scale trade. Archaeological hoard evidence from Britain, Gaul, the Rhine frontier, and Italy demonstrates that second-century sestertii circulated for decades, often remaining in active currency well into the mid-third century despite progressive surface wear. Because RIC III Commodus 614Aa was struck during the final year of the reign, its absolute production volume was necessarily smaller than issues struck over multi-year periods earlier in his rule. Following Commodus's assassination on December 31, AD 192, the Senate ordered his name erased from public monuments and his statues overturned. While copper-alloy coins were not comprehensively recalled or demonetized due to the substantial economic disruptions such a withdrawal would have provoked, many circulated heavily, resulting in smoothing of the intricate reverse details. Surviving specimens offer critical material evidence for the convergence of imperial autocracy and Eastern cult practices in the late Antonine era.

References

1. Le Buste Monétaire des Empereurs Romains. vol. 1
2. Coinage in the Roman Economy, 300 B.C. to A.D. 700. pp. 115-132
3. The Roman Imperial Coinage, Vol. III: Antoninus Pius to Commodus. p. 438, no. 614Aa
4. Online Coins of the Roman Empire: RIC III Commodus 614Aa. ric.3.com.614Aa
5. Die Münzprägung des Kaisers Commodus. Moneta Imperii Romani 18