Hadrian Dupondius, RIC II, Part 3 (second edition) Hadrian 404

Monetary Context and Denominational Role

Under the Roman monetary system established by Augustus and maintained into the second century AD, base-metal coinage served as the essential medium for urban trade, military retail expenditure, and everyday market transactions across Rome and Italy. The dupondius functioned as the secondary middle-bronze denomination, legally tariffed at two copper asses, one-half of an orichalcum sestertius, and one-eighth of a silver denarius. While the sestertius served as the principal unit of administrative account and high-value domestic exchange, the dupondius and as satisfied daily retail necessities that silver coinage was too valuable to facilitate. To prevent confusion in circulation between denominations of broadly similar physical modules, imperial authorities deliberately distinguished the dupondius through both alloy composition and visual iconography. Unlike the copper as, the dupondius was manufactured from orichalcum, a copper-zinc brass alloy prized for its bright, golden coloration. Because orichalcum possessed higher intrinsic economic value than unalloyed copper, the dupondius could circulate at twice the tariff of an as while maintaining a comparable diameter and weight. To ensure immediate identification even after surface patination or prolonged wear obscured the metallic luster, the imperial administration under Nero introduced the radiate crown as a standard iconographic marker for the emperor on dupondii, contrasting with the laureate crown or bare head customary on asses and sestertii. Issue RIC II, Part 3 (second edition) Hadrian 404 directly continues this numismatic tradition, utilizing the radiate crown to mark its denominational identity within Hadrian's prolific middle-bronze production.

Production Technology and Mint Attribution

RIC II, Part 3 (second edition) Hadrian 404 was produced exclusively at the primary imperial mint in Rome. During the early years of Hadrian's principate, the Rome mint was a highly structured, compartmentalized institution operating multiple officinae to execute concurrent coin production across gold, silver, and aes metals. Base-metal strikings in orichalcum required specialized metallurgy, combining copper with zinc ores through the calamine cementation process. Individual flans were cast in open or two-part molds, occasionally displaying bevelled edges or faint traces of runner removal before striking. Blanks were subsequently heated to increase ductility and struck between manually engraved iron dies. The obverse die, typically set into an anvil base, received the heavier physical stresses of the coining process, while the reverse die was affixed to a handheld punch struck by a hammer. As typical of official Roman imperial coinage of this era, striking was carried out with loose or manually adjusted die alignment, resulting in variable die axes across surviving specimens. Physical parameters for Hadrianic dupondii of this issue reflect standard early second-century mint tolerances: standard diameters typically range between 26 and 28 millimeters, with average weight standards clustering broadly around 11 to 14 grams, subject to standard metallurgical fluctuations and flan preparation variances. The inscription S C (Senatus Consulto) featured on the reverse reflects the constitutional convention whereby bronze and brass denominations were struck under senatorial decree, even though real administrative and fiscal authority over the mint remained entirely under imperial oversight.

Obverse Iconography and Portrait Typology

The obverse of RIC II, Part 3 (second edition) Hadrian 404 presents a right-facing portrait bust of Hadrian wearing the radiate crown of the Sun god Sol. The portrait style exemplifies the mature early imperial portraiture developed by master engravers at Rome between AD 119 and AD 121, characterized by crisp plastic modeling, naturalistic facial anatomy, and careful rendering of the emperor's iconic curly hair and trimmed beard. Hadrian's adoption of a full beard marked a profound stylistic departure from the clean-shaven conventions of the Julio-Claudian, Flavian, and Trajanic eras, evoking classical Greek philosophical ideals while aligning the ruler with heroic military styling. On this specific catalogue type, the bust is rendered with a bare chest, showing subtle traces of drapery gathered on the far left shoulder, visible just behind or below the neck truncation. The radiant solar crown, rendered with sharp triangular spikes projecting upward from a circlet around the temples, served a dual function: it served as an overt denominational device that identified the coin as a dupondius, while simultaneously assimilating the princeps to the celestial radiance of Sol, an association directly complementary to the celestial imagery presented on the reverse.

Reverse Iconography and Cosmic Symbolism

The reverse of the coin is devoted to the personification of Aeternitas, standing frontally with her head turned toward the left. Clothed in a long stola that drapes elegantly to her feet, she cradles in her outstretched hands two miniature divine busts representing Sol, the Sun, and Luna, the Moon. The celestial deities are distinguished by their classic attributes, Sol with his radiant crown or nimbus and Luna with her crescent crown. In Roman religious and political thought, Aeternitas personified perpetual duration, endurance, and cyclical permanence beyond human mortality. By displaying the celestial bodies that govern day and night, seasons, and cosmic time, Aeternitas demonstrates that the Roman Empire and the imperial office participate in this eternal celestial order. The type Aeternitas Augusti asserts that Hadrian's reign provides not merely temporal stability, but an enduring, divinely sustained era of peace and renewal. While earlier Flavian and Trajanic issues had invoked Aeternitas in connection with dynastic succession and deified predecessors, Hadrian's early use of the motif emphasized cosmic harmony and the overarching legitimacy of his new government following the political tensions that accompanied his accession in AD 117.

Epigraphy and Titulature Analysis

The inscriptions on RIC II, Part 3 (second edition) Hadrian 404 demonstrate the formal epigraphic conventions of the Rome mint during the initial phase of Hadrian's third consulship. The obverse legend reads unbroken around the perimeter: IMP CAESAR TRAIANVS HADRIANVS AVG P M TR P COS III. This comprehensive formula opens with the military title Imperator (IMP), followed by the dynastic names Caesar and Traianus, affirming Hadrian's formal adoption by his predecessor Trajan. It continues with his personal cognomen Hadrianus, the sacred title Augustus (AVG), and the supreme religious office of Pontifex Maximus (P M). His constitutional standing as civil protector is designated through the tribunician power (TR P), while his third consulship (COS III), assumed on January 1, AD 119, provides the chronological boundary stone for the issue. The reverse inscription reads AETERNITAS AVGVSTI across the upper perimeter, translating to 'The Eternity of the Augustus'. This legend explicitly attributes cosmic permanence to the emperor and the institution of the principate. In the lower lateral fields, flanking the figure of Aeternitas, is the abbreviation S C for Senatus Consulto ('By decree of the Senate'), affirming senatorial authorization for the brass coinage in accordance with traditional Roman legal protocol.

Typological Classification and Chronological Placement

In the chronological framework established by the second edition of Roman Imperial Coinage (RIC II, Part 3), type 404 is positioned within Hadrian's middle bronze issues struck at Rome during the interval of AD 120 to AD 121. While Hadrian entered his third consulship in AD 119 and never accepted a fourth, numismatists differentiate his expansive COS III coinage by analyzing the evolution of his obverse titulature, bust variants, and stylistic developments. The earliest COS III bronzes from AD 119 retain long Trajanic legends often including OPT P DIVI NER NEP ('Optimus, Grandson of the Divine Nerva'). By AD 120, the mint streamlined the titulature into the standard formula IMP CAESAR TRAIANVS HADRIANVS AVG P M TR P COS III seen on this issue, before eventually shifting in AD 124 and later to shortened forms placing HADRIANVS AVGVSTVS on the obverse and relegating COS III to the reverse. Type 404 forms part of a coordinated allegorical issue celebrating golden-age themes, including Felicitas, Concordia, and Providentia, issued immediately prior to Hadrian's departure from Italy on his first grand tour of the provinces in AD 121. It is typologically catalogued as distinct from its sestertius counterparts and from dupondius variants bearing alternative drapery arrangements, cuirassed busts, or laureate crowns.

Circulation, Wear Patterns, and Archaeological Context

Orichalcum dupondii struck at Rome circulated extensively throughout the central and western provinces of the Roman Empire, where base-metal denominations were in constant demand to sustain market-based monetization. Hoard evidence and excavation finds from urban centers, military forts, and rural settlements across Italy, the Rhine frontier, Britain, and the Danubian provinces indicate that dupondii experienced sustained, long-term velocity. Because dupondii and asses were struck in vast quantities under the Julio-Claudian, Flavian, and Antonine emperors, base-metal coins frequently remained in active commercial circulation for half a century or longer. Many surviving specimens of Hadrian's early middle bronzes exhibit heavy surface wear, rounded edges, and softened high points on the hair curls and the facial features of Sol and Luna, illustrating decades of manual handling before eventual burial or loss. In the archaeological record, dupondii rarely occur in high-value hoards of precious metal; instead, they predominate in site finds, votive deposits at sacred springs and temples, and mixed bronze hoards deposited during periods of third-century monetary distress, by which point the high zinc content of early second-century orichalcum had been replaced by lower-grade bronze alloys.

References

1. The Roman Imperial Coinage, Vol. II, Part 3: From Hadrian to Antoninus Pius: Hadrian. p. 112, no. 404
2. Coins of the Roman Empire in the British Museum. Vol. III: Nerva to Hadrian. pp. 415-418
3. Online Coins of the Roman Empire: RIC II, Part 3 (second edition) Hadrian 404. ric.2_3(2).hdn.404
4. Untersuchungen zur romischen Reichspragung des zweiten Jahrhunderts, Teil II: Die Reichspragung zur Zeit des Hadrian. pp. 102-108