Marcus Aurelius Caesar Sestertius, RIC III Antoninus Pius 1248

Monetary Context and Denominational Role

The sestertius held a preeminent place within the tri-metallic currency structure of the mid-second century AD. Valued at one quarter of a silver denarius or four copper asses, it served as the primary accounting unit across the Roman Empire while also operating as the largest circulating base-metal coin in everyday commerce. Unlike smaller bronze fractional pieces struck from pure copper, the imperial sestertius was manufactured from orichalcum, a copper-zinc alloy valued for its distinctive golden hue, durability, and resistance to corrosion. During the reign of Antoninus Pius, the imperial monetary administration sustained the classical weight and metallurgical standards that had governed base-metal issues since the Julio-Claudian era. While the silver denarius experienced minor downward adjustments in fineness over the broader second century, the sestertius remained exceptionally stable in both size and weight. A typical specimen struck to this standard conformed to a target weight around 25 to 28 grams, though normal metallurgical variation and mint tolerances frequently produced specimens weighing between 22 and 30 grams. The expansive flan of the sestertius, typically measuring between 31 and 33 millimeters across, offered Roman die engravers an expansive surface for detailed imperial portraiture and complex civic or religious allegories. Within this context, RIC III Antoninus Pius 1248 fulfilled both economic functions in high-value cash transactions and civic messaging duties, disseminating news of Marcus Aurelius's advancement in the constitutional hierarchy of the empire.

Production Standards and Mint Organization

All imperial bronze coinage under Antoninus Pius, including RIC III Antoninus Pius 1248, was produced centrally at the mint of Rome. Although regional civic mints operated extensively throughout the Greek-speaking eastern provinces, the production of official senatorial aes coinage was strictly concentrated in the capital to serve the Italian peninsula and the western provinces. The mint operated under the oversight of imperial equestrian procurators and technical personnel, maintaining multiple workshops or officinae organized to supply massive volumes of currency. Production of large orichalcum flans required casting circular blanks into open or bivalve molds, followed by edge trimming and cold or hot striking between hand-carved steel or bronze dies. Obverse dies carrying the portrait of Marcus Aurelius were rendered by senior master engravers capable of capturing naturalistic facial modeling, while reverse dies depicting Minerva followed standardized iconographic conventions. Because dies wore out at different rates, numismatic analysis demonstrates that obverse dies typically outlasted reverse dies, leading to diverse die pairings across the production run. The physical execution of RIC III Antoninus Pius 1248 demonstrates the high standard of technical mastery achieved by the Rome mint during the height of the Antonine period, characterized by deep relief, disciplined lettering, and careful flan preparation.

Obverse Iconography and Imperial Portraiture

The obverse of RIC III Antoninus Pius 1248 features a portrait bust or head of Marcus Aurelius turned to the right. In accordance with the standard iconographic protocols established for an uncrowned junior prince, the portrait is presented completely bare-headed, without the laurel wreath reserved exclusively for the reigning Augustus. The portraiture belongs to the distinctive second developmental phase of Marcus Aurelius's coin iconography, capturing him in his mid-twenties. The facial features exhibit a nascent, closely cropped beard, curly hair rendered in defined plastic locks, and a composed, serious expression typical of Antonine classicism. This presentation deliberately reflects both youthful vigor and mature self-restraint, visual qualities central to Stoic philosophy and imperial duty. By omitting military drapery or cuirass on standard issues of this type, the composition emphasizes civic virtue over overt militarism, aligning Marcus Aurelius with the peaceful, administrative ethos established by his adoptive father. The portrait is framed by a neatly engraved peripheral inscription running along the beaded border.

Reverse Iconography and Symbolism of Minerva

The reverse of RIC III Antoninus Pius 1248 is devoted to the goddess Minerva, standing facing right in an attitude of armed readiness yet defensive vigilance. She is depicted draped in a traditional long chiton with an aegis across her breast, her head adorned with a crested Corinthian helmet. In her right hand, she grasps a vertical spear held upright, while her left hand rests upon a circular or oval shield standing upright on the ground beside her. Minerva occupied a revered position within the Roman pantheon as the protector of the state, embodiment of practical wisdom, and patron of defensive warfare and civic arts. Unlike aggressive representations of Mars or winged Victory celebrating foreign conquests, this depiction of Minerva represents defensive strength, intellectual virtue, and divine guidance. The choice of Minerva for Marcus Aurelius was deeply purposeful; the young Caesar was already celebrated for his philosophical studies, legal training, and administrative diligence. By associating the heir apparent with Minerva, the monetary program emphasized that the defense and administration of the Roman state rested upon prudence, strategic wisdom, and pious devotion to the traditional gods.

Epigraphy and Titulature

The legends on both faces of RIC III Antoninus Pius 1248 provide concise legal and genealogical statements regarding Marcus Aurelius's constitutional standing. The obverse legend reads AVRELIVS CAESAR AVG PII F, an abbreviated formula resolving to Aurelius Caesar, Augusti Pii Filius (Aurelius Caesar, son of Augustus Pius). This legend clearly identifies Marcus as the legally adopted son of Antoninus Pius, deriving his authority and right of succession directly from the reigning emperor. The reverse inscription reads TR POT COS II, resolving to Tribunicia Potestate, Consul Iterum (invested with Tribunician Power, Consul for the second time), bordered across the field by the traditional formula S C for Senatus Consulto. While the formal tribunician grant would become an annual reckoning formula in later years, the appearance of TR POT alongside COS II precisely pinpoints the transition in Marcus Aurelius's public career. The inclusion of S C was an essential feature on all imperial brass and copper denominations, reflecting the constitutional fiction that the Senate authorized the production of aes currency while the imperial administration controlled the mint and financial apparatus.

Chronological Placement and Typological Context

RIC III Antoninus Pius 1248 is securely dated to the year AD 145. Marcus Aurelius assumed his second consulship on January 1, AD 145, serving alongside Antoninus Pius himself, who entered his fourth consulship in the same year. This joint tenure served as an explicit public demonstration of dynastic unity. It was also during AD 145 that Marcus Aurelius celebrated his marriage to Faustina the Younger, daughter of Antoninus Pius, cementing the dynastic alliance established under Hadrian. The coinage of AD 145 consequently saw an extensive output of aes denominations celebrating both the consulship and the associated honors conferred upon Marcus. Within the typological sequencing of Antonine coinage, RIC 1248 belongs to a closely related group of sestertii struck for Marcus Aurelius that feature standing or seated deities, including Minerva, Pax, and Juventas. It is catalogued as number 1248 in volume III of Roman Imperial Coinage, corresponding closely to parallel listings in Strack's corpus and the British Museum catalogue. Variants within this specific type primarily involve subtle engraving nuances, such as minor differences in the execution of Minerva's drapery, the angle of the spear, or the exact placement of the S C letters across the lower reverse field.

Circulation, Hoard Evidence, and Survival

Once released from the mint at Rome, sestertii of RIC III Antoninus Pius 1248 circulated widely across the Roman world. Because base-metal denominations were heavily utilized in routine civilian trade, military supply purchases, and regional taxation, they remained in circulation for extended periods, frequently lasting several decades or even over a century. Excavation data and hoard studies from Roman Britain, the Rhine frontier, Gaul, and the Danubian provinces regularly record second-century sestertii circulating well into the third century, often until the monetary crises and debasements of the mid-260s AD caused base-metal issues to be withdrawn or hoarded. Due to extensive circulation wear, many surviving specimens exhibit softened legends and smoothed high points on the hair and facial features. Specimens recovered from river deposits, dry agricultural settlements, or sealed domestic hoards preserve crisp portraits and fine details of Minerva's armor. Today, RIC III Antoninus Pius 1248 represents an important, well-documented type that provides numismatists and historians with tangible evidence of mid-second century imperial succession planning.

References

1. Coins of the Roman Empire in the British Museum, Vol. IV: Antoninus Pius to Commodus. pp. 270-275
2. Online Coins of the Roman Empire: RIC III Antoninus Pius 1248. ric.3.ant.1248
3. The Roman Imperial Coinage, Vol. III: Antoninus Pius to Commodus. p. 175, no. 1248
4. Untersuchungen zur romischen Reichspragung des zweiten Jahrhunderts, Teil III: Die Reichspragung zur Zeit des Antoninus Pius. types of Marcus Aurelius, AD 145