Marcus Aurelius Bronze Sestertius, RIC III Marcus Aurelius 1075

Monetary Context

During the joint and sole reigns of the Antonine emperors, the sestertius functioned as the flagship large bronze denomination of the Roman monetary system. Valued at one-quarter of a silver denarius or four copper asses, the sestertius offered a large flan that imperial authorities utilized extensively for detailed political and religious communication. Struck in orichalcum, a golden-toned copper-zinc brass alloy, it was the heaviest standard token denomination produced for general domestic circulation in Italy and the western provinces. By AD 172 to 173, the Roman Empire was locked in the costly Marcomannic Wars along the upper and middle Danube. While silver denarii met immediate military payroll demands, high-volume production of brass sestertii sustained civil markets and urban cash transactions while projecting carefully curated imperial messages across the empire.

Production and Mints

RIC III Marcus Aurelius 1075 was produced exclusively by the central imperial mint in Rome. Die cutters of the urban mint cut detailed master dies for this issue, reflecting sophisticated architectural perspective in the rendering of the columnar shrine. Sestertii of this period followed nominal weight standards centered around 24 to 28 grams, with typical diameters ranging between 30 and 34 millimeters, though individual specimens vary naturally due to manual flan preparation and striking adjustments. The minting process employed heated cast orichalcum blanks struck between engraved iron dies, often using die axes oriented near twelve o'clock or six o'clock. The inclusion of the formulaic S C across the lower reverse field confirms that production was sanctioned through the traditional constitutional authority of the Roman Senate.

Obverse Portraiture

The obverse presents a right-facing portrait of Marcus Aurelius crowned with a laurel wreath, whose ties fall naturally along his neck. Portrayed in the dignified, mature style characteristic of his later reign, the emperor is depicted with a full philosopher's beard and carefully curled hair. Die engravers captured an expressive, introspective likeness reflecting both Stoic gravity and the physical strain of prolonged military campaigning along the Danubian limes. The laurel wreath affirms his continuous military leadership and imperatorial acclamations earned during hard-fought Danubian offensives.

Reverse Iconography and Architectural Design

The reverse displays an extraordinary architectural composition centered on a tetrastyle temple. Rather than conventional Classical fluted shafts, the columns are rendered as sculpted telamons supporting an arched or semicircular pediment. Inside the pediment field, minute relief depictions represent emblems sacred to Mercury: from left to right, a tortoise, a cock, a ram, a petasus, a winged caduceus, and a purse. Within the temple interior, a cult statue of Mercury stands facing on an elevated plinth with his head turned left, holding a money purse in his lowered right hand and a winged caduceus in his left arm, wearing a petasus and short traveling cloak. Numismatists and historians have frequently connected this singular depiction to the miraculous thunderstorm that delivered the Roman legions from thirst and defeated Quadian forces around AD 172, an event attributed in contemporary accounts to divine favor secured through the prayers of the emperor.

Inscriptions and Epigraphy

The obverse inscription reads M ANTONINVS AVG TR P XXVII, styling the ruler as Marcus Antoninus Augustus invested with tribunician power for the twenty-seventh time. The reverse legend is split into two primary components: the continuous circumferential inscription IMP VI COS III, registering Marcus Aurelius's sixth imperatorial acclamation and third consulship, and the bold thematic formula RELIG AVG, positioned in the exergue or flanking the shrine. RELIG AVG represents an abbreviation of Religio Augusti, commemorating the Emperor's reverent piety toward the gods. The letters S and C (Senatus Consulto) flank the temple structure, reaffirming senatorial sanction for the bronze issue.

Typology and Chronological Placement

The chronological envelope of RIC III Marcus Aurelius 1075 is securely fixed by imperial titulature. The obverse designation TR P XXVII dates the issue to the period running from December 10, AD 172, to December 9, AD 173. Simultaneously, Marcus Aurelius retains the title IMP VI, acquired in AD 171 following early victories over German tribes, and COS III, which he assumed on January 1, AD 161. In the typology established by Harold Mattingly and Edward A. Sydenham in The Roman Imperial Coinage, type 1075 belongs to a broader sequence of religious and triumphal issues struck at Rome celebrating imperial survival and victory in the northern wars. Minor die variations exist among known specimens in the treatment of the telamons and the exact internal spacing of the pedimental symbols, yet all adhere to the primary type definition.

Circulation and Historical Reception

As a prominent brass denomination, sestertii of this type circulated throughout the urban centers of Italy and the western provinces, alongside military camps along the Rhine and Danube. Due to their durable alloy and steady civic demand, sestertii of Marcus Aurelius regularly circulated for decades, often staying in active use well into the third century AD until third-century monetary inflation led to extensive wear and withdrawal of high-relief orichalcum coinage. The iconic RELIG AVG temple type remained deeply influential in modern historiography, serving as a vital archaeological touchstone in debates surrounding the literary accounts of Cassius Dio and the scenes depicted on the Column of Marcus Aurelius.

References

1. I Grandi Bronzi Imperiali: Marcus Aurelius. Vol. III-1, sestertius catalogue
2. Pagan Versions of the Rain Miracle of A.D. 172. Historia 36 (1987), pp. 83-95
3. The Roman Imperial Coinage, Vol. III: Antoninus Pius to Commodus. p. 301, no. 1075
4. Online Coins of the Roman Empire: RIC III Marcus Aurelius 1075. Type record ric.3.m_aur.1075
5. Die Münzprägung des Kaisers Marcus Aurelius nebst Lucius Verus und der Halbschwestern (MIR 18). Emission dates and typology for AD 172-173