Hadrian Orichalcum Sestertius, RIC II, Part 3 (second edition) Hadrian 424

Monetary Context and Denominational Function

During the early second century AD, the Roman monetary system functioned as an integrated, multi-denominational framework resting on precious-metal standards supplemented by large base-metal coins for domestic commerce. The sestertius served as the central accounting unit of state finance and the principal large-denomination brass coin in daily economic life. Valued at one-quarter of a silver denarius or four copper asses, the sestertius held substantial purchasing power, making it a familiar denomination for significant civilian transactions, tax payments, and institutional payouts across Rome and the provinces. Under Hadrian, the production of orichalcum denominations maintained the compositional standards solidified during the Flavian dynasty. Orichalcum, a golden-toned alloy of copper and zinc, was distinctly prized over pure copper both for its aesthetic brilliance and its perceived monetary value. Struck on expansive flans averaging between 24 and 28 grams, the sestertius allowed imperial authorities to project complex political statements through visual art. RIC II, Part 3 (second edition) Hadrian 424 exemplifies this denominational role, marrying substantial intrinsic metal weight with an explicit visual dialogue concerning imperial benevolence and civic liberty.

Production Standards and Minting Practices

All authoritative evidence attributes RIC II, Part 3 (second edition) Hadrian 424 to the imperial mint situated in Rome. The centralized facility at Rome handled the overwhelming bulk of western brass and bronze coin manufacture during the early principate, deploying highly organized officinae (workshops) responsible for specific denominations and alloy preparation. Flan manufacture for orichalcum sestertii involved casting round blank discs in open or two-part molds, followed by hot striking between engraved iron or bronze dies. The heavy physical impact required to bring up the intricate high-relief portrait of Hadrian demanded massive force, frequently applied by teams of mint workers using heavy sledgehammers. The composition of orichalcum in this period typically incorporated around 15 to 20 percent zinc, although recycling of older brass and mixed bronze scrap frequently produced minor compositional drift in individual melts. The Rome mint maintained rigorous quality control over overall die alignment, artistic fidelity, and weight distributions, producing finished coins that typically spanned 31 to 34 millimeters in diameter.

Obverse Iconography and Portrait Typology

The obverse of this catalogued type presents a right-facing portrait bust of Hadrian, rendered with laurel wreath and drapery over the shoulders, depicted from a frontal or three-quarter frontal perspective. Hadrianic numismatic portraiture broke sharply with the clean-shaven, military realism of Trajan by introducing a full, neatly trimmed Greek beard and expressive, wavy hair. This physiognomic change reflected the emperor's deep philhellenism and intellectual self-conception while simultaneously establishing a visual precedent that defined Roman imperial portraiture for over a century. The specific arrangement defined in type 424 underscores regal gravity through the laureate crown, secured by fluttering ties at the nape, while the frontally viewed drapery conveys formal civilian and military authority. The engravers at Rome demonstrated mastery in modelling anatomical contours, capturing the emperor's mature facial features, prominent brow, and contemplative demeanor in exceptional high relief.

Reverse Iconography and Political Allegory

The reverse iconography of RIC II, Part 3 (second edition) Hadrian 424 is dedicated to Libertas Publica, personified as a seated female divinity oriented toward the left. In her right hand, she extends a branch, while her left arm cradles a long vertical sceptre. She is seated upon a solid, low-backed stool or throne, robed in classical chiton and himation draped across her lap. The personification of Libertas Publica was a standard but potent ideological motif in the imperial repertoire. In early Hadrianic coinage, it communicated the restoration of constitutional balance, legal security, and senatorial respect following the tense political transitions and the controversial execution of four consular figures early in Hadrian's reign. The branch signifies peaceful abundance and reconciliation, whereas the sceptre affirms legitimate sovereign governance. Below the figure, placed prominently within the exergue, appears the senatorial formula S C (Senatus Consulto), marking the formal cooperation between emperor and Senate in decreeing base-metal coinage.

Epigraphy and Legend Structure

The epigraphic structure of this type integrates an uninterrupted circular obverse legend with a distinct reverse title and separate exergual abbreviation. The obverse reads: IMP CAESAR TRAIANVS HADRIANVS AVG P M TR P COS III. This comprehensive formula recites the complete constitutional authority assumed by the princeps: Imperator (supreme commander), Caesar (dynastic heir), Traianus (invoking his adoptive father Trajan), Hadrianus (personal cognomen), Augustus (sacred sovereign), Pontifex Maximus (chief priest), Tribunicia Potestate (holder of civil tribunician sacrosanctity), and Consul Tertium (consul for the third time). The reverse inscription is concisely rendered as LIBERTAS PVBLICA in the outer upper field, identifying the abstract civic virtue embodied by the central seated figure. In the lower field, the exergual inscription S C functions as an administrative formula declaring that the bronze coinage was struck under senatorial authority, maintaining a long-standing constitutional fiction that anchored imperial currency within traditional republican norms.

Typological Development and Chronology

The second edition of Roman Imperial Coinage (RIC II, Part 3) firmly situates type 424 in the chronological window of AD 120 to 121. This dating relies upon the combination of Hadrian's third consulship (COS III), which he assumed on January 1, AD 119 and held throughout the remainder of his life without renewing, alongside stylistic and epigraphic markers that predate his adoption of the title Pater Patriae (P P) around AD 128. Within the broader sequence of Hadrian's third-consulship bronze issues, the Libertas Publica theme represents an established phase of ideological reassurance produced prior to the emperor's departure for his extensive tours of the western provinces in AD 121. While variants of this design exist with standing figures of Libertas or differing bust drapings, type 424 is strictly defined by the combination of the seated Libertas holding branch and sceptre with the laureate and draped bust viewed from the front.

Circulation, Wear, and Archaeological Recovery

As large brass coins with substantial intrinsic value and durability, sestertii of this period circulated widely for decades across the Roman Empire. Archaeological hoards and single-find contexts demonstrate that Hadrianic sestertii circulated primarily in Italy, the western provinces such as Gaul, Britain, and the Germanies, and along military frontiers where pay was disbursed. Because base-metal coinage remained in active commercial circulation far longer than silver or gold, surviving specimens of RIC II, Part 3 (second edition) Hadrian 424 typically exhibit noticeable degrees of wear, often smoothing the finer drapery lines and the delicate features of Libertas. Over long periods in the ground, orichalcum develops characteristic patinas ranging from deep olive-green to dark brown, influenced by local soil chemistry and corrosion processes. The wide spatial recovery of this series highlights the enduring role of the Rome mint in supplying circulating cash across the imperial frontiers.

References

1. The Metallurgy of Roman Coinage: From the Reform of Nero to the Reform of Trajan Decius. Chapter on Antonine and Hadrianic Brass
2. Coins of the Roman Empire in the British Museum (BMCRE), Vol. III: Nerva to Hadrian. Hadrian, Section: Rome Aes
3. Online Coins of the Roman Empire: RIC II, Part 3 (second edition) Hadrian 424. ric.2_3(2).hdn.424
4. The Roman Imperial Coinage, Vol. II, Part 3: Hadrian (2nd ed.). Type 424
5. Untersuchungen zur romischen Reichspragung des zweiten Jahrhunderts, Teil II: Die Reichspragung zur Zeit des Hadrian. Chronology of the Third Consulship