Julia Mamaea Sestertius, RIC IV Severus Alexander 701

Monetary Context and Denominational Role

During the reign of Severus Alexander (AD 222 to 235), the Roman monetary system preserved the traditional tripartite structure established during the Augustan principate, comprising gold aurei, silver denarii, and brass or copper base-metal denominations. The sestertius held a vital position within this framework as the principal large-denomination base-metal coin, valued at four asses, two dupondii, or one-fourth of a silver denarius. Although progressive debasement had reduced the fineness of the silver denarius across the Severan era, the sestertius continued to be struck on heavy flans composed predominantly of orichalcum (a copper-zinc brass alloy). Sestertii functioned as the everyday workhorses for civic commerce, large routine retail transactions, and domestic trade throughout the empire. Furthermore, the broad physical flan of the sestertius provided an expansive canvas for imperial communication, making it an indispensable instrument for disseminating dynastic messaging, political legitimacy, and state religion to the Roman populace. The striking of sestertii under the authority of Severus Alexander on behalf of his mother, Julia Mamaea, emphasized her central role in the imperial court. Julia Mamaea governed effectively as regent alongside her young son following the assassination of Elagabalus in AD 222. The formal inclusion of her portrait on the senior base-metal denomination broadcast her constitutional and familial standing as Augusta across all levels of society.

Mint Production and Technical Standards

RIC IV Severus Alexander 701 was produced exclusively by the imperial mint at Rome, which held an effective monopoly over the regular base-metal coinage struck for central imperial authorities in this period. Production of third-century sestertii utilized cast blank flans that were individually heated and struck between hardened intaglio dies. The obverse die was typically set into an anvil while the reverse die was mounted in a handheld punch, struck by heavy hammer blows. While earlier sestertii of the second century AD often averaged between 25 and 28 grams, standard weights at Rome had gradually moderated by the late Severan era. Specimens of RIC IV Severus Alexander 701 generally fluctuate within an empirical range between 18 and 24 grams, with diameters commonly measuring between 28 and 32 millimetres. Because base-metal coins were struck al marco (a fixed number of pieces produced from a given total weight of molten alloy) rather than al pezzo (individual piece-by-piece weighing), variations in thickness and diameter across the series are normal. The alloy for sestertii under Severus Alexander retained an orichalcum composition, though trace impurities of lead and tin reflect the recycling of older bronze and brass scrap in the Rome mint workshops. The dies were prepared by experienced imperial engravers whose fine execution and standard letterforms maintained stylistic continuity with the concurrent silver issues.

Obverse Typology and Imperial Iconography

The obverse of RIC IV Severus Alexander 701 presents a right-facing bust of Julia Mamaea, meticulously draped and adorned with a stephane or diadem. Her hair is arranged in the characteristic late Severan court style: waved carefully horizontally across the cranium, carried downward behind the ears, and folded up into a broad, flat plait or braided chignon pinned against the back of the head. This elaborate coiffure, often associated with the empress dowagers of the Severan house, symbolizes maternal modesty, patrician elegance, and moral decorum. The diadem crowns her coiffure, underscoring her elevated standing as Augusta. The drapery wraps around the shoulders in soft, linear folds, rendered with the controlled modeling typical of Rome's master engravers during the early to middle 220s AD. As mother to the young emperor, Julia Mamaea was honoured as Augusta, Mater Augusti, and ultimately Mater Castrorum et Senatus et Patriae. The obverse portrait intentionally conveys maturity, calm dignity, and sovereign authority, balancing traditional Roman matronal virtues with imperial dynastic majesty. Minor stylistic variations occur among individual obverse dies, particularly in the number of hair waves, the precise tilt of the diadem, and the execution of the bust termination, yet the general iconographic program remains uniform across the production runs.

Reverse Iconography and the Cult of Venus Felix

The reverse design depicts Venus Felix, the embodiment of Venus as the bringer of good fortune, domestic happiness, and fruitful lineage. The goddess is portrayed fully draped, seated upon a backless throne facing left. In her outstretched right hand, Venus cradles a small statuette, traditionally identified as Cupid or a diminutive figure of Victory, symbolizing maternal love, generative power, or divine triumph. In her left hand, she holds a tall, slender sceptre held vertically or resting lightly against her body, an emblem of sovereign dignity and celestial authority. The letters S and C appear in the left and right fields respectively, flanking the enthroned figure. Venus had long enjoyed an intimate association with the Roman state and the imperial family, reaching back to Venus Genetrix as the mythical ancestress of the Julian line and the broader concept of divine dynastic protection. Under the Severan emperors, Venus Felix was repeatedly invoked on coin types struck for female members of the imperial family, notably Julia Domna, Plautilla, Julia Maesa, and Julia Mamaea. For Mamaea, the type merged religious veneration with practical political legitimation: it portrayed the empress mother as the earthly counterpart to the divine protector, safeguarding the fortune and longevity of her son's regime.

Epigraphy and Legend Structure

The legends on RIC IV Severus Alexander 701 are executed in clean, classical Latin capitals, adhering to the high epigraphic standards of the third-century Rome mint. The obverse inscription reads IVLIA MAMAEA AVGVSTA, curving clockwise around the bust from the lower left. This concise formula proclaims the imperial title Augusta directly alongside her personal nomenclature, affirming her supreme female imperial rank without requiring subordinate titles. The reverse inscription reads VENVS FELIX, disposed circularly along the upper rim, identifying the divine personification who presides over the type. In the lower field, flanking the seated figure of the goddess, stands the senatorial abbreviation S C, which denotes Senatus Consulto ('by decree of the Senate'). In constitutional theory, the senatorial formula remained a traditional hallmark of bronze and brass denominations, distinguishing the base-metal series from gold and silver struck under direct imperial prerogative. Epigraphic variations across the dies are limited to minor differences in letter spacing, the presence of ligatured characters, and punctuation pellets, with the core legend text preserved consistently across the entire catalogue type.

Typological Variants and Chronological Development

Within the cataloguing scheme of Roman Imperial Coinage, RIC IV Severus Alexander 701 represents the principal sestertius type pairing the IVLIA MAMAEA AVGVSTA obverse with the VENVS FELIX seated reverse. While the broader issue dates to Severus Alexander's reign between AD 222 and 235, numismatists have sought to establish tighter chronological windows for Julia Mamaea's coinage based on hoard contexts, imperial titles, and stylistic parallels with dated silver issues. Mattingly and Carson noted that Mamaea's initial coinage followed Severus Alexander's accession in AD 222, with several Venus types struck repeatedly throughout the reign. A related standing Venus Felix type (RIC IV Severus Alexander 704) and a Venus Genetrix type (RIC IV Severus Alexander 703) circulated concurrently, sharing identical obverse legends but varying the posture and attributes of the goddess. On RIC 701, minor die varieties exist where the statuette held by Venus is depicted with or without outstretched wings, or where the throne exhibits decorated legs and cushions. However, these represent engraver idiosyncrasies rather than deliberate denominational subdivisions or distinct catalogue types. Because Severus Alexander's base-metal issues for his mother rarely carry explicit tribunician dates, the exact terminal date of striking for RIC 701 within the 222 to 235 period remains subject to scholarly discussion.

Circulation Patterns and Archaeological Recovery

Sestertii of Julia Mamaea were produced in substantial quantities and enjoyed prolonged, wide-ranging circulation across the Western and Danubian provinces as well as within the Italian peninsula. Archaeological evidence from coin hoards and stratified excavations confirms that third-century base-metal coins circulated alongside surviving Antonine and earlier Severan brass pieces. Due to severe economic pressures and increasing monetary debasement later in the third century, base-metal sestertii continued to change hands for decades, often suffering extensive physical wear, edge knocking, and corrosion. Hoard assemblages from Roman Britain, the Rhine frontier, Gaul, and Pannonia frequently contain specimens of RIC IV Severus Alexander 701 in worn to heavily worn conditions, indicating long utility in market transactions before final deposition. By the mid-to-late third century, as the double denarius (antoninianus) became the dominant everyday transactional denomination and inflation accelerated, regular sestertius production ceased across the empire. Nevertheless, worn sestertii of Mamaea remained in local pools of circulating small change until the comprehensive currency reforms initiated under Diocletian and the Tetrarchy at the end of the third century AD.

References

1. Coins of the Roman Empire in the British Museum, Vol. VI: Severus Alexander to Balbinus and Pupienus. pp. 195-197
2. Online Coins of the Roman Empire: RIC IV Severus Alexander 701. RIC IV Severus Alexander 701
3. The Roman Imperial Coinage, Vol. IV, Part II: Macrinus to Pupienus. p. 125, no. 701