Caracalla Silver Antoninianus, RIC IV Caracalla 273D

Monetary Context and the Severan Double Denarius

The introduction of the silver coin modern numismatists designate as the antoninianus marked one of the most consequential fiscal shifts of the early third century AD. Initiated by Caracalla around the turn of AD 214 and 215, this new denomination was formally tariffed as a double denarius. The imperial treasury faced escalating operational costs driven by extensive military pay increases, substantial dona and subsidies to Danubian federates, and preparations for massive eastern campaigns against Parthia. To meet these mounting financial burdens without fully exhausting state silver reserves, imperial authorities engineered an overvalued currency unit. Although rated at two denarii in state transactions and general commerce, the newly minted coin did not contain twice the intrinsic silver mass of a contemporary denarius. A standard denarius of the late Severan era typically weighed approximately 3.1 to 3.3 grams with a fineness fluctuating around fifty to fifty-five percent silver. The newly minted antoninianus averaged between 4.8 and 5.2 grams with comparable or marginally inferior metal purity. Consequently, the currency bore an intrinsic metal worth equivalent to roughly one and a half denarii while circulating at an official value of two. This disparity yielded an immediate seigniorage surplus for the imperial fiscus, providing quick budgetary relief at the cost of gradual inflationary pressure across the Roman Mediterranean. RIC IV Caracalla 273D stands among the initial issues produced under this fiscal framework in AD 215. As an early representative of the denomination, it reflects the careful implementation of distinctive iconographic signifiers. The radiated crown, long utilized on Roman bronze dupondii to mark double value relative to the laureate as, was transferred directly onto precious-metal portraiture. The issue thus established an explicit visual grammar for Roman money users, denoting double denomination value while embedding potent imperial ideology within the silver coinage.

Production Standards and the Rome Mint

The entirety of the regular issue catalogued as RIC IV Caracalla 273D was produced by the central mint located at Rome. While provincial and branch mints in the East, such as Antioch, later expanded operations during Caracalla's eastern travels, the initial launch of the antoninianus in AD 215 was heavily concentrated in the capital. The administrative apparatus of the Rome mint operated several specialized officinae or workshops capable of striking vast quantities of coin flans to supply legionary distributions and urban payments. Technological analysis of early Severan antoniniani illustrates that flan preparation adhered to standardized metallurgical parameters. The silver alloy, nominally described as billon or debased argentiferous metal, was blended with significant quantities of copper to achieve durability and conserve fine bullion. Mint workers cast rounded blanks before striking them with hardened iron or bronze dies. Because the denomination was slightly broader than the denarius, mint engravers adjusted their dies to produce flans typically ranging between 22 and 24 millimeters in diameter. Adjusted weight standards for this emission cluster around 5.0 grams, though normal metallurgical variations led individual pieces to fluctuate between 4.2 and 5.5 grams. Production dies for RIC IV 273D were executed with a high level of technical proficiency, capturing detailed facial modeling and intricate fabric folds on the bust, as well as crisp dynamic anatomical rendering on the reverse lion. The volume of surviving dies confirms substantial mint output during the single calendar year of its production, indicating an intensive striking program tailored to the emperor's fiscal agenda in AD 215.

Obverse Iconography and Imperial Representation

The obverse of RIC IV Caracalla 273D depicts a right-facing bust of Caracalla characterized by the distinctive radiate crown, drapery, and military cuirass. This combination of attributes conveys both administrative hierarchy and aggressive martial prestige. Caracalla is rendered in the characteristic realistic style of his sole reign, featuring tight cropped curls, a short military beard, furrowed brows, and an intensely stern expression. This artistic presentation, widely recognized by art historians and numismatists as the soldier-emperor portrait style, departed decisively from the philosophical composure of the Antonine dynasty to highlight ferocity, resolve, and shared identity with the legionary ranks. The bust type specified for RIC IV 273D is specifically draped and cuirassed as seen from the side, revealing layered defensive armor beneath an imperial mantle pinned at the shoulder. This dress reinforced Caracalla's role as supreme commander of the Roman armed forces during a time of active military mobilization. The radiate crown encircles the head, its prominent spikes projecting upward through the hair. Beyond its economic function as an indicator of the double denarius denomination, the solar crown aligned the emperor with Sol Invictus, emphasizing celestial majesty and unvanquished vigor.

Reverse Iconography: The Radiate Lion with Thunderbolt

The reverse of RIC IV Caracalla 273D presents an extraordinary and highly charged mythological image: a maned lion striding purposefully to the left, adorned with a radiate crown around its head and gripping a winged thunderbolt firmly between its jaws. This composition combines multiple layers of cosmic, military, and theological symbolism rarely assembled in Roman monetary design. The lion serves fundamentally as an emblem of sovereign power, terrestrial dominion, and indomitable martial strength. In Roman imperial contexts, lions frequently evoked Herculean virtus, recalling the Nemean lion vanquished by Hercules, an ancestral patron deity heavily revered by the Severan dynasty and Caracalla in particular. The addition of the radiate crown to the lion mirrors the solar imagery of the obverse, linking the beast to Sol and solar deities of the Near East, where Caracalla was actively conducting statecraft and preparing for war. In eastern religious traditions, particularly in Syria and Mesopotamia, solar lions were revered as divine protectors and avatars of celestial triumph. Furthermore, the winged thunderbolt held within the beast's mouth directly invokes Jupiter, the supreme protector of the Roman state. By carrying the weapon of Jupiter in its jaws, the radiate lion functions as the direct agent of divine justice and cosmic vengeance. On this reverse type, Caracalla visually broadcast that his impending military undertakings possessed both divine sanction and cosmic power, positioning the emperor as the terrestrial counterpart to an all-conquering solar and Jovian order.

Epigraphy and Titulature

The inscriptions on RIC IV Caracalla 273D provide precise epigraphic evidence for dating the emission and establishing the official imperial titulature of the period. The obverse legend reads unbroken around the peripheral border: ANTONINVS PIVS AVG GERM. This legend abbreviates the formula 'Antoninus Pius Augustus Germanicus'. The adoption of the agnomen Germanicus honors Caracalla's successful military campaigns against Germanic tribes along the Rhine and Danube frontiers between AD 213 and 214. Pius reflects his claimed filial devotion and continuity with the Severan succession, while Augustus confirms supreme executive sovereignty. The reverse legend carries the extended imperial civil and religious titles: P M TR P XVIII COS IIII P P. Expanded, this formula represents 'Pontifex Maximus, Tribunicia Potestate duodevicesimum, Consul quartum, Pater Patriae'. As Pontifex Maximus, Caracalla presided over the chief college of Roman priesthoods, underscoring his spiritual mediation between the state and the gods. The notation TR P XVIII securely fixes the striking of the coin to his eighteenth term of tribunician power, which ran through the calendar year AD 215. The designation COS IIII references his fourth consulship, assumed on January 1, AD 213, while Pater Patriae encapsulates his traditional constitutional role as father of the fatherland. Together, these epigraphic elements establish a strictly dated official document of imperial authority.

Typology and Chronological Placement

Within the typology of the Roman Imperial Coinage, RIC IV Caracalla 273 is categorized into several lettered sub-variants based primarily on obverse bust drapery. Variant 273D specifically designates the bust that is both draped and cuirassed, seen facing right. Companion variants within the number 273 series encompass alternate bust treatments, including radiate busts that are cuirassed only or draped only. All shared the identical reverse die concept of the radiate lion walking left with a thunderbolt. Chronologically, RIC IV 273D belongs to the pivotal inaugural phase of the antoninianus in AD 215. Tribunician dating assigns the issue definitively to that year, coinciding with Caracalla's journey through the Danubian provinces and Thrace toward Asia Minor, Antioch, and Egypt. The striking of antoniniani continued into AD 216 and early 217 under TR P XIX and TR P XX, but the radiate lion reverse remained unique to the AD 215 emission, making it a tightly constrained diagnostic type. The production of the antoninianus was suspended shortly after Caracalla's death under Macrinus and Elagabalus before being discontinued entirely by Severus Alexander, rendering these initial Severan radiate issues distinct chronological markers in third-century numismatics.

Circulation, Hoard Evidence, and Monetary Impact

Upon release from the Rome mint in AD 215, antoniniani of the RIC 273 series entered active circulation across the empire, with heavy concentrations distributed along military transport corridors and border garrisons. The coins moved readily toward the Danubian frontier and the eastern staging areas where Roman legions gathered for Caracalla's campaign against Artabanus IV of Parthia. Because state disbursements were delivered predominantly to soldiers, legions became primary vectors for disseminating the new tariffed double denarii throughout provincial markets. Hoard evidence from across Britain, Gaul, the Rhine, and the Balkans documents that early antoniniani circulated in tandem with traditional denarii, though often in modest proportions during their first years of existence. In many Severan and post-Severan hoards, coins of Caracalla's AD 215 emission appear with visible wear, indicating that they saw prolonged commercial use over several decades. When the antoninianus was re-introduced and debased much further under Gordian III and his successors in the late 230s and 240s, the heavier Severan pieces, including RIC IV 273D, became targets for hoarding or melting under Gresham's Law. Nonetheless, surviving specimens across numerous European and Near Eastern finds attest to their substantial initial production and widespread geographical integration.

References

1. Coins of the Roman Empire in the British Museum, Vol. V: Pertinax to Elagabalus. pp. 450-453
2. Coinage in the Roman Economy, 300 B.C. to A.D. 700. pp. 125-135
3. Online Coins of the Roman Empire: RIC IV Caracalla 273D. ric.4.crl.273D
4. The Roman Imperial Coinage, Vol. IV, Part I: Pertinax to Geta. p. 250, no. 273D