Marcus Aurelius Sestertius RIC III Antoninus Pius 1315

Monetary and Political Context

During the reign of Antoninus Pius (AD 138 to 161), the Roman monetary system maintained remarkable internal stability, continuing the reformed Augustan framework of precious and base-metal denominations. Within this monetary landscape, the sestertius served as the flagship brass or orichalcum coin, valued at four asses, two dupondii, or one quarter of a silver denarius. Beyond its substantial fiscal utility in state disbursements, tax collection, and daily civic transactions, the denomination possessed an expansive flan that made it an ideal medium for state communication. In imperial policy, the succession was paramount. Antoninus Pius had adopted Marcus Aurelius and Lucius Verus in AD 138 at the behest of Hadrian. By AD 153 to 154, Marcus had long served as Caesar, having received the tribunician power in late AD 147. Struck under the legal authority of Antoninus Pius, RIC III 1315 highlighted the dynastic continuity of the principate. By issuing monumental bronze coinage in the name of the junior co-ruler, the regime assured the Roman senate and populace of a secure, prearranged transition of supreme power.

Production and Mint Organization

The production of RIC III Antoninus Pius 1315 took place exclusively at the imperial mint in the capital city of Rome, which monopolized state brass and bronze coinage for the western empire during the mid-second century AD. The coin was manufactured from orichalcum, a copper-zinc alloy known for its bright golden-yellow appearance when freshly struck. Metallurgical analyses of Antonine sestertii indicate a gradual decline in zinc content relative to early Julio-Claudian issues, though the Rome mint maintained rigid technical control over mass, flan preparation, and striking. Blanks were cast in individual moulds or harvested from runner-connected moulds, heated, and struck between hand-cut iron dies. Die alignment for Rome during this era typically followed an upright or semi-regular orientation, generally six o'clock or twelve o'clock. Engravers at the Rome mint worked within established officinae, achieving an exceptionally high level of portraiture and lettering consistency. Surviving specimens show standard medium-to-broad flan diameters typical of Antonine sestertii, averaging between 30 and 34 millimetres, with weight standards clustered theoretically around 25 to 27 grams, though subject to routine metallurgical variation.

Obverse Iconography and Style

The obverse of RIC III 1315 features a finely modeled portrait bust of Marcus Aurelius facing right. The Caesar is portrayed bare-headed and draped, a composition that underscores his subordinate yet elevated status prior to accession as Augustus. In second-century Roman imperial art, the absence of a laurel wreath distinguished the junior partner or designated heir from the reigning Augustus, who normally wore the corona civica or laurel crown. The drapery across the shoulders is executed with classicizing naturalism, showing layered folds of the paludamentum or mantle. Mint engravers captured Marcus Aurelius in his early thirties, characterized by curls of thick hair framing the temples and a trimmed, philosopher-style beard that became his defining physiognomic trait. This careful visual presentation balanced youthful vigor with intellectual gravitas, visually reinforcing his fitness for future supreme command. The portrait is framed by a continuous circular legend running clockwise from the lower left, set within an outer beaded border.

Reverse Iconography and Symbolism

The reverse design presents Minerva, the Roman goddess of wisdom, defensive warfare, and civic craftsmanship, seated right on a backless throne or stool. She is represented fully draped in a peplos and chiton, wearing a crested Corinthian helmet. Her right hand clasps a vertical spear held point upward, while her left hand rests upon a rounded shield set beside her seat. Flanking the seated deity in the lower field are the letters S and C, denoting Senatus Consulto, the formal senatorial authorization standard on Roman base-metal issues. Minerva had long occupied a central position in Roman state religion as a member of the Capitoline Triad alongside Jupiter and Juno. On Antonine imperial coinage, her appearance on issues of Marcus Aurelius carried multiple layers of ideological meaning. She served as a divine exemplar of military preparedness joined with prudent governance, reflecting the philosophical and stoic virtues cultivated by Marcus under the guidance of his adoptive father. Her seated posture conveys stability and protective guardianship over the empire rather than aggressive conquest.

Epigraphy and Titulature

The inscriptional program of RIC III 1315 conveys precise legal and constitutional information through abbreviated Latin epigraphy. The obverse legend reads AVRELIVS CAESAR AVG PII FIL, which expands into Aurelius Caesar, Augusti Pii Filius. This legend proclaims Marcus's adopted nomenclature, his rank as Caesar, and his filiation as the son of Antoninus Pius Augustus. The epigraphy emphasizes dynastic legitimacy over personal military titles. The reverse inscription reads TR POT VIII COS II, supplemented by the field mark S C. This formula denotes Tribunicia Potestate Octavum, Consul Iterum, Senatus Consulto. Marcus Aurelius was granted the tribunician power on 10 December AD 147, meaning his eighth tribunician year commenced in December AD 153 and ended in December AD 154. His second consulship, taken in AD 145, remained his latest iterative consular rank during this interval, as he did not assume a third consulship until AD 161. The letterforms exhibit the sharp, classical serifed capitals characteristic of the high Antonine Rome mint, arranged symmetrically along the inner circumference of the flan.

Typology and Chronological Placement

Within the typology of Antoninus Pius's coinage compiled by Mattingly and Sydenham in Roman Imperial Coinage Volume III, number 1315 is classified among the bronze issues struck for Marcus Aurelius as Caesar. The issue belongs strictly to the period between late AD 153 and late AD 154, securely defined by the combination of Marcus's eighth tribunician power (TR POT VIII) and his second consulship (COS II). Strack and Szaivert catalogued this type within the chronological sequence of Marcus's administrative promotions, distinguishing it from adjacent issues celebrating earlier or later tribunician renewals. Parallel designs featuring Minerva standing or seated were struck in other metals, including aurei and denarii, as well as middle bronzes such as dupondii and asses. On the sestertius, variations in bust treatment exist across the broader emission, with bare-headed, draped, and occasionally cuirassed combinations recorded in major corpora, though RIC 1315 specifically designates the bare-headed, draped bust facing right. The type represents a stable, standard substantive emission rather than a short-lived commemorative issue.

Circulation and Monetary Life

Following its distribution from the Rome mint, RIC III Antoninus Pius 1315 entered an empire-wide commercial network. Sestertii circulated heavily in Italy and the western provinces, including Gaul, Hispania, Britain, and along the Rhine and Danube frontiers, where high troop concentrations demanded reliable low-denomination coin supplies. Because sestertii possessed intrinsic value as substantial bronze pieces while simultaneously functioning as fiat tokens relative to gold and silver, they remained in active circulation for decades. Archaeological context and hoard evidence indicate that Antonine sestertii routinely circulated into the third century AD, frequently surviving until the monetary disruptions of the mid-third-century crisis and the debasement of the antoninianus. Many recovered specimens show extensive surface wear, patination, and minor countermarking or edge chipping accrued across generations of civic exchange. Hoards deposited along provincial borders demonstrate that coins bearing the portrait of Marcus Aurelius as Caesar remained acceptable currency long after his eventual sole reign and death.

References

1. The Roman Imperial Coinage, Vol. III: Antoninus Pius to Commodus. p. 179, no. 1315
2. Online Coins of the Roman Empire: RIC III Antoninus Pius 1315. ric.3.ant.1315
3. Untersuchungen zur römischen Reichsprägung des zweiten Jahrhunderts, Teil III: Die Reichsprägung zur Zeit des Antoninus Pius. p. 112
4. Die Münzprägung des Kaisers Antoninus Pius, Moneta Imperii Romani 18. MIR 18