Caracalla Silver Antoninianus, RIC IV Caracalla 275C

Monetary Context and Denominational Reform

The coin designated as RIC IV Caracalla 275C belongs to the first phase of the radiate silver denomination introduced under Caracalla in 215 AD, conventionally termed the antoninianus in modern numismatic literature. Confronted with massive military pay increases, donatives, and aggressive expenditure across the northern and eastern frontiers, the imperial government required an expanded volume of circulating coin without depleting the treasury's finite reserves of bullion. The solution was an overvalued coin nominally valued as a double denarius. While carrying the purchasing power of two standard denarii, the newly created denomination weighed on average between 5.0 and 5.3 grams, which was significantly less than two standard denarii weighing roughly 3.1 to 3.2 grams each. Furthermore, the fineness of the antoninianus hovered around 50 percent silver, matching the debased standard of contemporary denarii. This intrinsic shortfall provided the Severan state with a fiscal profit upon minting, though it introduced an inflationary dynamic that reshaped Roman monetary circulation over the following half-century. Issue 275C was struck in 216 AD, precisely when the metropolitan mint was mass-producing both denarii and antoniniani to fund the mobilization of legions along the eastern frontier for the planned Parthian expedition.

Mint Organization and Production at Rome

Production of RIC IV Caracalla 275C is attributed exclusively to the principal imperial mint at Rome. During 216 AD, the Rome mint was organized into several numbered officinae, or workshops, which simultaneously struck gold aurei, silver denarii, silver antoniniani, and multiple bronze denominations under the supervision of the procurator monetae. The technical execution of the type shows the standard characteristics of third-century metropolitan die-cutting: dies were carved with high-relief portraits displaying fine detailing in the curls of Caracalla's beard, the radiate crown spikes, and the drapery folds over the cuirass. Blanks were cast in moulds and struck while warm, resulting in irregular flan edges and occasionally oval circumferences. Striking was performed using heavy iron dies, and the high output required to support military expenditure resulted in visible die wear on surviving specimens, including die breaks and minor legend recutting. Although Caracalla was physically present in Antioch and the East preparing for operations against the Parthian Empire during 216 AD, administrative control over the metropolitan mint ensured that imperial portrait styles and official titulature remained strictly harmonized with standard Senate-approved formulas issued from the capital.

Obverse Iconography and Imperial Portraiture

The obverse of RIC IV Caracalla 275C displays a right-facing bust of Caracalla characterized by three specific attributes: radiate, draped, and cuirassed. The radiate crown serves as the primary visual mark of denomination, distinguishing the antoninianus from the laurel-crowned denarius and signalling a nominal tariff of two units, an iconographic convention rooted in early imperial double-denomination practices such as the radiate dupondius. Caracalla is portrayed in his mature, stern portrait style, marked by a short, tightly curled beard, furrowed brow, and intense expression. This physiognomy deliberately projected military toughness, severitas, and readiness for command, breaking sharply with the serene, classical portraits of the Antonine dynasty. The bust displays drapery arranged carefully over an anatomical cuirass, indicating Caracalla's supreme military role as imperator. Die cutters maintained strict conventions for the bust's orientation and accoutrements, although minor variations exist across individual dies regarding the angle of the bust, the length of the tie ribbons extending from the radiate crown, and the precision with which the pteruges and cuirass fastenings are detailed.

Reverse Iconography: Jupiter the Preserver

The reverse design presents Jupiter standing facing, with his head turned left, completely naked except for occasional stylizations where drapery is absent or minimized. In his right hand, the deity holds a thunderbolt directed downward or slightly forward, while his left hand grasps a tall sceptre resting vertically against the ground. This depiction draws upon ancient classical models of Jupiter Conservator or Jupiter Stator, casting the chief Olympian god as the active protector of the Roman realm and the personal guardian of the emperor. The thunderbolt symbolizes divine retributive power and victorious majesty, directly aligning imperial authority with the supreme celestial authority. In 216 AD, as Caracalla prepared to cross the Mesopotamian frontier to engage the Arsacids, invoking Jupiter held paramount ideological importance. The choice of reverse imagery reassured both the civilian populace in Rome and the mobilized legions in the field that the forthcoming campaign enjoyed the sanction and active assistance of the supreme deity. Unlike related issues that depict an eagle at the feet of Jupiter or add captives to the field, the composition of RIC IV Caracalla 275C remains strictly focused on the solitary figure of the standing god.

Epigraphy and Titulature

The epigraphy on RIC IV Caracalla 275C provides precise administrative and chronological data that enables unambiguous dating of the issue. The obverse inscription reads ANTONINVS PIVS AVG GERM, reflecting the emperor's official imperial name Antoninus, the customary titles Pius (dutiful or pious) and Augustus, and the victory cognomen Germanicus, which Caracalla adopted following his campaigns against the Alamanni along the Rhine and Danube in 213 AD. The omission of earlier titles such as Britannicus reflects a streamlined metropolitan titular formula used during the latter half of his reign. The reverse legend reads P M TR P XVIIII COS IIII P P, which unpacks into Caracalla's official civic and religious offices: Pontifex Maximus (chief priest), Tribunicia Potestate XVIIII (exercising tribunician power for the nineteenth time), Consul IIII (consul for the fourth time), and Pater Patriae (father of the fatherland). Caracalla's nineteenth tribunician renewal began on December 10, 215 AD, and ran through December 9, 216 AD. Combined with his fourth consulship, held continuously from 213 AD, this epigraphic formula confines the striking of this coin firmly to the calendar year 216 AD.

Typology, Dating, and Related Issues

In the classification scheme of the Roman Imperial Coinage, RIC IV Caracalla 275C represents a distinct substantive entry within the substantive antoninianus series of 216 AD. It is catalogued alongside closely related reverse types produced during Caracalla's nineteenth tribunician year, which feature deities and personifications such as Serapis, Sol, Venus Victrix, and Mars. RIC 275 itself is subdivided in numismatic reference corpora based on bust treatments: while RIC 275C specifically designates the radiate, draped, and cuirassed bust, other bust variants in the wider emission include radiate and draped without cuirass (RIC 275A) or radiate and cuirassed alone (RIC 275B). Furthermore, contemporaneous denarii share the identical reverse legend and motif of Jupiter standing with thunderbolt and sceptre, demonstrating that reverse dies were conceived systematically to span multiple denominations within the same striking period. The issue of 216 AD represents one of the final coin series struck under Caracalla prior to his assassination in April 217 AD near Carrhae during the Mesopotamian campaign.

Circulation and Hoard Evidence

Coins of the RIC IV Caracalla 275C type circulated widely across the Roman Empire, though their pattern of movement was conditioned by the novel nature of the antoninianus denomination. Because early antoniniani were struck in smaller overall quantities than contemporary denarii between 215 and 217 AD, specimens of RIC 275C represent a moderate component of third-century silver hoards. When Caracalla's successor Macrinus curtailed production of the denomination and Elagabalus subsequently ceased striking antoniniani altogether around 219 AD, existing antoniniani remained in commercial circulation alongside denarii. The denomination experienced a brief revival under Balbinus and Pupienus in 238 AD and became the dominant imperial silver denomination under Gordian III. Consequently, specimens of Caracalla's 216 AD issue frequently appear in hoards deposited during the middle and late third century, such as those buried during the Germanic incursions and political crises of the 250s and 260s AD throughout Gaul, Britain, and the Danubian provinces. In these later contexts, surviving specimens often exhibit significant surface wear and edge chipping, reflecting several decades of continuous commercial circulation before final concealment.

References

1. Coinage in the Roman Economy, 300 B.C. to A.D. 700. pp. 125-132
2. Coining Images of Power: Patterns in the Representation of Roman Emperors on Imperial Coinage, A.D. 193-284. pp. 104-118
3. The Roman Imperial Coinage, Volume IV, Part I: Pertinax to Geta. p. 257, no. 275
4. Online Coins of the Roman Empire: RIC IV Caracalla 275C. Type ric.4.crl.275C