Julia Domna Silver Antoninianus, RIC IV Caracalla 379A

Monetary Reform and Denominational Context

The appearance of RIC IV Caracalla 379A is tied directly to the major monetary reform enacted by Caracalla in approximately 215 AD. Faced with mounting fiscal pressures, including substantial increases in military stipends and generous donatives distributed to secure legionary loyalty, the imperial treasury confronted a severe shortage of bullion. To remedy this deficit, the administration introduced a new silver denomination, historically known to collectors and scholars as the antoninianus, after the emperor's official name, Marcus Aurelius Antoninus. The ancient name of this denomination remains unrecorded in surviving administrative or literary papyri, although modern consensus securely identifies it as a double denarius tariffed at two units. Despite being valued at two denarii in official accounting, metallurgical analyses demonstrate that the antoninianus weighed only around one and a half times that of a contemporary denarius, typically averaging between 5.0 and 5.3 grams, with a silver fineness hovering near fifty percent. This intrinsic overvaluation created an advantageous profit margin for the state, generating significant seigniorage whenever fresh bullion was struck into coin. Under this system, standard denarii were not immediately eliminated but continued to be produced alongside the larger piece. For female members of the imperial house, specifically the empress mother Julia Domna, the denomination required an explicit visual marker of its tariffed value. While male portraits displayed the radiate crown signifying twice the value of a laureate coin, Augusta portraits were placed upon a delicate horizontal lunar crescent. RIC IV Caracalla 379A represents one of the premier manifestations of this newly defined denomination struck in the name of Julia Domna, merging radical fiscal policy with traditional Severan dynastic visual codes.

Production Standards and Mint Attribution

The entire attested mintage of RIC IV Caracalla 379A originated from the principal imperial mint situated at Rome. During this phase of the Severan period, the eastern provincial workshops such as Antioch and Laodicea, which had operated intensely during the civil wars and early campaigns of Septimius Severus, were largely dormant for regular imperial silver issues, leaving Rome with an uncontested monopoly over central precious-metal production. The workshop system at Rome was organized into distinct administrative officinae, though explicit workshop marks would not appear on silver coins until several decades later. Physical specimens belonging to this type exhibit the characteristic technical traits of the late Severan Rome mint: thick, compact flans, bold die engraving, and centralized striking executed with heavy mechanical force. Die alignment is predominantly regular, typically adhering to an upright twelve o'clock or inverted six o'clock axis. Because the denomination was tariffed at a substantial premium over its metallic value, mint officials maintained strict control over gross weights, producing batches clustering closely around a nominal standard of approximately 5.10 grams, though surviving preserved examples show slight variations attributable to uneven blank preparation or localized wear. The silver alloy was produced by melting existing silver stocks diluted with refined copper, yielding an argentiferous surface that often patinates into dark gray or iridescent tones over centuries of subterranean burial.

Obverse Iconography and Royal Depiction

The obverse of RIC IV Caracalla 379A displays the mature bust of Julia Domna turned to the right. Her portrait reflects the distinctive late Severan court style developed after the death of Septimius Severus in 211 AD. The empress is portrayed draped in a formal stola, fastened cleanly around the shoulder, with the folds of her garment rendered in plastic, rounded ridges typical of contemporary Rome mint engravers. Her iconic, elaborate coiffure is depicted with meticulous precision: heavy waves of hair run in pronounced, parallel ridges down the side of her head, drawn back and folded upward in a massive, flat plaited bun resting low on the nape of her neck. Resting atop this elaborate wig or hair arrangement is a delicate stephane or diadem, marking her regal standing as Augusta. Most decisively for the coin's denomination, the lower truncation of the bust is set upon the horns of an upturned lunar crescent. The crescent serves both a mechanical numismatic function, signaling the double tariff of the coin to users across the empire, and a profound theological role. By resting upon the moon, the portrait of the empress mother transcends mortal bounds, presenting her as a celestial protectress intimately connected to nocturnal light and cosmic stability.

Reverse Iconography of Luna Lucifera

The reverse iconography features Luna, the Roman goddess of the moon, frequently syncretized with Diana Lucifera, driving a two-horse chariot, or biga, toward the left. The goddess is portrayed in a dynamic pose, standing erect inside the car of the chariot, guiding her galloping horses with reins held securely in her hands. She is draped in flowing classical garments, with a long mantle that catches the nocturnal breeze and billows behind her in a dramatic arching semicircle. A prominent lunar crescent is positioned upon her brow, making her divine celestial identity immediately recognizable. The accompanying reverse inscription, LVNA LVCIFERA, translates as 'Luna, the Light-Bringer'. This divine imagery functioned on several layers within Severan political theology. While the emperor Caracalla increasingly adopted the iconography of Sol Invictus, the unconquered sun, presenting himself as the cosmic ruler of day and victory, Julia Domna was consistently paired with the feminine counterpart of Luna, the ruler of the night. Furthermore, Diana and Luna were revered in traditional Roman religion as deities presiding over childbirth, feminine welfare, and nocturnal protection. Struck during an era when Caracalla campaigned along distant borders, the depiction of the Light-Bringer driving through the darkness provided reassuring visual rhetoric that the Augusta's maternal oversight watched continuously over the capital and the Roman state.

Epigraphy and Titulature

The epigraphic composition of RIC IV Caracalla 379A is succinct, elegant, and standard for the final phase of Julia Domna's numismatic visibility. The obverse bears the continuous peripheral legend IVLIA PIA FELIX AVG, reading clockwise from the lower left. This string of titles represents a significant evolution in imperial feminine titulature. The surname 'Pia' emphasizes her traditional Roman piety, devotion to the state gods, and fidelity to her deceased deified husband, Septimius Severus. The epithet 'Felix', meaning fortunate or blessed, was an honorific that had previously been applied almost exclusively to reigning male emperors, notably Sulla, Commodus, and Septimius Severus. Julia Domna's adoption of 'Pia Felix' alongside 'Augusta' underscores the unprecedented executive prestige and administrative influence she exercised during the sole reign of her son Caracalla, during which she oversaw vast imperial correspondence and petitions in Rome. On the reverse, the legend LVNA LVCIFERA serves as a straightforward nominative identification of the depicted deity, omitting titles of human authority in favor of divine invocation. The lettering at the Rome mint during this timeframe is rendered with neat, compact serifs, consistent letter heights, and well-balanced spacing, avoiding the crowded letterforms occasionally seen on lower-tier provincial issues.

Typological Classification and Chronological Placement

In the standard reference corpus The Roman Imperial Coinage, this coin is categorized as RIC IV Caracalla 379A, nested within the issues struck for Julia Domna during Caracalla's sole reign. The overarching chronological boundary assigned by early twentieth-century catalogers encompasses the full span of Caracalla's rule from the death of Geta in late 211 AD until Caracalla's murder in April 217 AD. However, modern numismatic scholarship has significantly refined this chronology. Because the antoninianus denomination did not exist prior to Caracalla's monetary adjustments of late 214 or early 215 AD, RIC IV Caracalla 379A could not have been struck during the earlier portion of the reign. Consequently, the actual period of manufacture is tightly constrained to the interval between 215 and early 217 AD. Within the antoniniani struck for Julia Domna, type 379A forms a distinct typological pairing with a companion reverse depicting Venus Genetrix seated. Minor die variations exist within type 379A, particularly regarding the exact curvature of the crescent beneath the bust, the length of the mantle folds trailing Luna, and subtle shifts in the spacing of the obverse legend breaks, but these represent ordinary engraver idiosyncrasies rather than deliberate administrative sub-types.

Circulation, Hoard Evidence, and Historical Impact

Following its release at the capital, RIC IV Caracalla 379A entered circulation alongside both traditional Severan denarii and the rapidly expanding volume of Caracalla's own radiate antoniniani. Archaeological findspots and hoard evidence demonstrate that the new double denarii were initially viewed with caution by the provincial and mercantile population due to their debased intrinsic value. According to Gresham's Law, better-quality silver denarii from the earlier Antonine and early Severan periods were frequently hoarded and withdrawn from active markets, while the lighter, overvalued antoniniani circulated briskly across domestic trade routes and military outposts. Hoards deposited in the mid-third century across Gaul, the Danubian frontier, and Roman Britain, such as the vast deposits containing mixed Severan issues, frequently include moderate numbers of Julia Domna antoniniani. These specimens often show moderate to heavy wear, indicating sustained circulation over several decades before eventual burial. The production of antoniniani ceased temporarily under Macrinus and Elagabalus, who briefly favored the denarius, before being revived in huge numbers under Gordian III and his successors. Thus, RIC IV Caracalla 379A stands as a critical evolutionary prototype, representing both the experimental genesis of the third-century empire's dominant silver coin and one of the ultimate numismatic monuments to the powerful Severan empress.

References

1. The Severan Denarius and Antoninianus, in The Oxford Handbook of Greek and Roman Coinage. pp. 505-520
2. Online Coins of the Roman Empire: RIC IV Caracalla 379A. ric.4.crl.379A
3. The Roman Imperial Coinage, Volume IV, Part I: Pertinax to Geta. p. 273, no. 379A
4. The Public Image of Severan Women, Papers of the British School at Rome. Vol. 79, pp. 241-273