Trajan Sestertius, RIC II Trajan 432

Monetary Context and Denominational Role

Under Trajan, the Roman imperial monetary system maintained the structural foundations established by Augustus and reformed under Nero and the Flavians. At the core of the base-metal hierarchy stood the sestertius, valued at four bronze asses or two orichalcum dupondii, with four sestertii equaling one silver denarius and one hundred sestertii constituting an aureus. Beyond its standard accounting role as the sestertius-nummus, the physical sestertius operated as the highest-denomination base-metal coin in general circulation. Its substantial module, typically spanning 32 to 35 millimeters in diameter, provided an expansive canvas for public messaging. Trajan utilized this denomination heavily to signal political stability, civic generosity, and imperial virtues to urban populations and provincial markets alike. Struck during the fourth consulship of Trajan between AD 101 and AD 102, RIC II Trajan 432 emerged at a critical fiscal moment when the Roman state was financing the initial campaigns of the First Dacian War while maintaining domestic subsidies and public infrastructure programs in Rome.

Mint Location and Technical Production

RIC II Trajan 432 was produced exclusively at the primary imperial mint in Rome. During this era, bronze and orichalcum coin production was organized into distinct officinae operating under the administrative authority of the procurator monetae. Sestertii were struck from orichalcum, a golden-toned copper-zinc brass alloy that distinguished the sestertius and dupondius from the pure copper as and quadrans. Blanks were cast in open or two-part moulds, producing thick, beveled flans that were often adjusted for weight before striking. Dies were hand-engraved with iron puncheons and gravers by skilled caelatores. Struck in high relief between heavy bronze or iron dies, the flans required immense physical force, often delivered by multiple blows of a sledgehammer while the alloy was warm or after thorough annealing. Weights for this denomination cluster around a nominal standard of roughly 26 to 27 grams, though surviving specimens exhibit broad variance due to batch-weighing practices (al marco) rather than individual coin-by-coin calibration.

Obverse Iconography and Imperial Portraiture

The obverse of RIC II Trajan 432 exhibits the laureate head of Trajan facing right. In accordance with the realistic stylistic tendencies of early Trajanic portraiture, the emperor is depicted with clean-shaven, taut facial features, a prominent straight nose, and hair combed flat across the forehead in straight, severe locks. The laurel wreath rests upon his head with ties falling gracefully down the nape of the neck. This visual treatment departs from the idealized Flavian court style, presenting Trajan as a disciplined, austere military magistrate. The portrait occupies the central field of the die, framed symmetrically by the peripheral imperial inscription. The engraving of the portrait conveys authority, sober dignity, and vigilance, visually aligning the princeps with the traditional republican virtues expected of an optimal civil administrator.

Reverse Iconography: The Imagery of Pax

The reverse of RIC II Trajan 432 presents the allegorical personification Pax seated toward the left upon an elaborate high-backed throne. She is draped in traditional stola and palla, embodying both civic decency and divine composure. In her outstretched right hand, Pax extends an olive branch, the universally recognized Mediterranean emblem of peaceful settlement and reconciliation. Her left arm supports a long transverse sceptre, indicating divine and imperial sovereignty. In the lower field and exergue appears the letters S C (Senatus Consulto), confirming the formal decree of the Senate sanctioning the issue. The promotion of Pax during the active deployment of Roman legions in Dacia presents a deliberate political dichotomy: military force is framed not as conquest for its own sake, but as the necessary instrument through which Roman peace, security, and imperial order are permanently secured.

Epigraphy and Titulature Analysis

The inscriptions on RIC II Trajan 432 provide precise chronological and ideological evidence. The obverse legend reads IMP CAES NERVA TRAIAN AVG GERM P M, abbreviating Imperator Caesar Nerva Traianus Augustus Germanicus, Pontifex Maximus. This formula documents his adopted Neronian-Flavian nomenclature through Nerva, his supreme title of Augustus, his military cognomen Germanicus won under Nerva on the Rhine frontier, and his role as chief priest of the Roman state religion. The reverse legend continues his administrative cursus with TR POT COS IIII P P, followed by S C in the field. This decodes as Tribunicia Potestate, Consul quartum, Pater Patriae, Senatus Consulto. The tribunician power renewed annually confirmed his civil supremacy, while Pater Patriae ('Father of the Fatherland') underlined his benevolent guardianship over Roman citizens. Crucially, the mention of his fourth consulship (COS IIII) without the fifth (COS V, assumed in AD 103) firmly establishes the production window between AD 101 and 102.

Typology and Chronological Classification

In the standard reference classification of Roman Imperial Coinage, RIC II Trajan 432 falls into Trajan's second substantive bronze period. Modern chronological revisions by Bernhard Woytek in 'Die Reichsprägung des Kaisers Traianus' classify these issues under Group 4 or 5, pinpointing them to the years AD 101-102. This issue is typologically linked with related bronze issues displaying Victory, Hercules, or Abundantia, yet RIC 432 remains distinct due to its specific combination of the seated Pax reverse and the unaugmented COS IIII legend lacking the honorific title DACICVS. In late AD 102, following Trajan's initial successes in Dacia, the imperial titulature was formally updated to include DACICVS on both precious metal and bronze coins. Thus, RIC II Trajan 432 represents the final major sestertius series struck before the official epigraphic integration of the Dacian triumph into the imperial titulature.

Circulation Patterns and Archaeological Recovery

Sestertii of the early second century AD were workhorse coins that enjoyed long commercial lifespans across the empire. Archaeological findspots and hoard evidence show that RIC II Trajan 432 circulated extensively throughout the western provinces, including Italia, Gallia, Hispania, and the militarized frontiers of Germania Superior, Germania Inferior, and Pannonia. Because large bronze coins possessed considerable intrinsic metal value and high purchasing power, they circulated for generations, often continuing in active use well into the reigns of Antoninus Pius, Marcus Aurelius, and the Severans. Surviving examples frequently display significant surface wear, softening of high-relief die elements, and the dark green or brown patinas characteristic of prolonged burial in European soils. Hoards deposited during the third-century currency crises routinely contain early Trajanic sestertii, testifying to their durable utility in the Roman marketplace long after their initial minting.

References

1. Coins of the Roman Empire in the British Museum, Vol. III: Nerva to Hadrian. pp. 150-155
2. Online Coins of the Roman Empire: RIC II Trajan 432. ric.2.tr.432
3. The Roman Imperial Coinage, Vol. II: Vespasian to Hadrian. p. 275, no. 432
4. Die Reichsprägung des Kaisers Traianus (98-117), Moneta Imperii Romani 14. MIR 14, nos. 101-110