Julia Mamaea Silver Denarius, RIC IV Severus Alexander 358

Monetary Context and Imperial Policy

During the reign of Severus Alexander (222 to 235 AD), Roman silver coinage operated within a dual-denomination silver framework established during the earlier Severan period. While the double denarius or antoninianus had been introduced under Caracalla, Severus Alexander halted its production entirely, restoring the traditional denarius as the sole silver denomination struck for regular circulation. Under his administration, the denarius saw modest stabilization in weight and fineness compared to the drastic debasements of the later third century, typically maintaining an alloy of roughly 40 to 45 percent silver and an average weight standard of approximately 3.0 grams. The political context of the reign was defined by the extraordinary prominence of Julia Mamaea, the mother of the emperor. Severus Alexander had ascended the throne as a teenager following the assassination of his cousin Elagabalus, leaving executive administration and imperial policy heavily reliant on Mamaea. She was styled Augusta and later took on honorifics including Mater Augusti et Castrorum. Dynastic coinage honoring Julia Mamaea served not merely as complimentary portraiture, but as vital state propaganda intended to reassure the Roman populace, the Senate, and especially the provincial legions of continuity, moral rectitude, and divine guidance.

Production and Mint Organization

The entire production of RIC IV Severus Alexander 358 is attributed to the central imperial mint in Rome. During the 220s and 230s AD, the Rome mint operated with several distinct workshops (officinae), which were tasked with striking parallel coin series for the emperor and senior members of the imperial family. Numismatic studies by Harold Mattingly and subsequent researchers indicate that specific officinae were dedicated to producing Augusta issues alongside the regular consular, tribunician, and military types of Severus Alexander. Dies for this series were hand-engraved by imperial celatores following established stylistic conventions of the Rome mint. Flans were cast in individual molds or prepared from strip blanks, heated, and struck between paired dies. Because quality control during this phase of the Severan administration remained relatively high compared to the chaotic decades that followed, specimens of RIC 358 generally demonstrate consistent fabric, centralized strikes, and regular alignment, typically hovering around a six o'clock die axis. Surviving specimens exhibit a typical diameter between 18 and 20 millimeters and standard weights predominantly clustering between 2.6 and 3.3 grams.

Obverse Iconography and Portraiture

The obverse presents a right-facing bust of Julia Mamaea, carefully draped in a traditional Roman stola and wearing an imperial diadem. Her hair is rendered in the distinctive court coiffure popular among Severan empresses: waves drawn horizontally back across the head, carried up the nape of the neck in a broad, flat plait or braid, and fastened securely beneath the diadem. This structured hairstyle, reminiscent of the trends established by her aunt Julia Domna and mother Julia Maesa, signaled conservative Roman matronly values. The die-engravers rendered Mamaea with mature, dignified facial features, emphasizing large eyes, a prominent nose, and a composed expression. Subtle variations exist in the truncation of the bust and the drapery folds, representing the work of different hands across the Rome mint's workshops, yet the iconographic template remained tightly controlled throughout the striking period.

Reverse Iconography and Attributes

The reverse displays Venus Victrix standing facing left, draped in long robes. In her extended right hand, she holds an upright crested helmet, while her left arm cradles a long vertical sceptre or transverse lance. Resting on the ground immediately to her left, at her feet, is a military shield, shown in profile or slight three-quarter perspective. The juxtaposition of Venus, the ancestral mother of the Julian and Roman lineage, with the attributes of martial victory (helmet and shield) was an established iconographic tradition dating back to the late Republic and early Empire. In the context of Julia Mamaea's coinage, Venus Victrix carried multifaceted symbolism. It honored the Augusta as an imperial mother while simultaneously invoking military triumph, divine protection over the army, and marital legitimacy. The presence of the shield and helmet balanced the domestic and dynastic virtues of an Augusta with the militaristic requirements of an empire facing heightened pressure on its Rhine and eastern frontiers.

Epigraphy and Legends

The legends on both faces of the coin are brief, direct, and unpunctuated, conforming to the epigraphic practices of third-century Roman state coinage. The obverse legend reads IVLIA MAMAEA AVG, beginning from the lower left and reading clockwise around the rim. This formula incorporates her personal nomen and cognomen followed by the abbreviated title AVG for AVGVSTA. Unlike some longer ceremonial inscriptions applied to Mamaea on provincial or medallion issues, this standard denarius formula maintained maximum clarity on the compact flan. The reverse legend reads VENVS VICTRIX, arranged continuously along the upper border. The lettering is rendered in regular Latin square capitals, with the individual letterforms carved sharply into the dies. Minor spacing variations occur depending on the specific engraver and the posture of the goddess's helmet and sceptre, but the text itself remains unvaried across the issue.

Typology and Chronological Placement

In Roman Imperial Coinage, Volume IV, Part 2, Harold Mattingly and Edward A. Sydenham classified this issue as RIC 358 under the coinage of Severus Alexander struck for Julia Mamaea. The type belongs to the middle and late phases of Severus Alexander's reign, dating generally between 225 and 235 AD. Precise internal dating of the undated Augusta denarii relies on stylistic comparisons with the securely dated tribunician issues of Severus Alexander, as well as compositional hoard analysis. While Mamaea's earlier issues feature simpler hairstyles or emphasize maternal personifications such as Fecunditas or Juno Conservatrix, the Venus Victrix type represents a sustained production running parallel with military campaigns in the East against the Sasanian Empire and later on the Germanic frontier. Related issues include bronze sestertii and dupondii bearing identical iconographic schemes, as well as contemporary denarii that depict Venus Felix or Venus Genetrix, which differ by their specific attributes such as an apple or a child.

Circulation, Hoards, and Deposition

Denarii of Julia Mamaea, including RIC 358, circulated widely across all sectors of the Roman Empire. Major hoard evidence from Roman Britain, the Rhine frontier, the Danubian provinces, and Syria confirms that these coins remained active in currency pools through the reigns of Maximinus Thrax and Gordian III. Because Severus Alexander's denarii retained a comparatively higher silver standard than the base antoniniani introduced en masse after 238 AD, they were favored for saving and hoarding. Wear patterns on surviving specimens range from near-mint condition, derived from early frontier savings deposits, to heavily worn examples preserved in long-term third-century hoards buried during the crisis period of the 250s and 260s AD. As Gresham's Law took effect following the massive debasements under Gallienus and Claudius II, Severan denarii were progressively culled from everyday circulation and melted down for their silver content, leaving surviving examples primarily to archaeological deposits and hoard finds.

References

1. Coins of the Roman Empire in the British Museum, Vol. VI: Severus Alexander to Balbinus and Pupienus. Julia Mamaea, Rome Mint
2. Online Coins of the Roman Empire: RIC IV Severus Alexander 358. ric.4.sa.358
3. The Roman Imperial Coinage, Vol. IV, Part II: Macrinus to Pupienus. p. 125, no. 358
4. Roman Coins and Their Values, Volume II: The Accession of Nerva to the Fall of the Severan Dynasty. p. 673, no. 8216