Trajan Bronze As, RIC II Trajan 575 (as)

Monetary Context and Denominational System

During the reign of Trajan (AD 98 to 117), the Roman imperial coinage operated according to the bimetallic and base-metal denominational structure established during the Augustan monetary reform of the late first century BC. Within this established hierarchy, the copper as occupied a pivotal position as the baseline unit of everyday small-value transactions. Valued at one-fourth of an orichalcum sestertius, one-half of an orichalcum dupondius, and one-sixteenth of a silver denarius, the as was struck from unalloyed or nearly pure copper rather than the brass orichalcum alloy reserved for the higher-value aes denominations. This compositional distinction imparted a characteristic reddish coloration that visually separated the as from the golden-yellow dupondius and sestertius, aiding rapid denomination recognition among users in active market contexts. Under Trajan, vast quantities of base-metal coinage were produced to facilitate state expenditure, supply urban markets, and provide change for military stipends, especially following the massive bullion influx and expenditures surrounding the Dacian Wars. The issue catalogued as RIC II Trajan 575 (as) belongs to an expansive mid-reign series bearing the Senate's honorific formula OPTIMO PRINCIPI, expressing the shared ideological priorities of the princeps and the Roman Senate. While large sestertii offered a broad canvas for elaborate narrative propaganda, medium-sized copper asses such as RIC 575 carried equivalent civic and religious iconographies directly into the daily commerce of plebeian and provincial consumers.

Mint Organization and Production Techniques

All regular issues of RIC II Trajan 575 (as) were manufactured at the central imperial mint in the city of Rome, which exercised exclusive authority over western aes production during this phase of Trajan's administration. Production was organized into specialized workshops, or officinae, which prepared copper planchets, engraved dies, and executed manual striking under the supervision of imperial freedmen and mint administrators. Flans for the as were cast as round blanks using open or two-part molds and subsequently cold-hammered or trimmed along the perimeter to achieve the requisite weight standard and circular profile before being struck between engraved bronze or iron dies. Striking was performed manually by hammer crews, requiring precise placement of the upper die to render the intricate architectural detailing of the temple structure on the reverse. The physical weight standard for Trajanic asses of this era generally centered around 10 to 11 grams, with flan diameters typically spanning 26 to 28 millimeters, though normal production variations and subsequent corrosion wear caused individual specimens to deviate across broader distributions. Die axes for Rome-mint bronze in this era typically clustered around the standard six-o'clock or twelve-o'clock orientations. The mechanical quality of the Rome mint during the fifth consulship of Trajan is evident in the sharp, three-dimensional modeling of the octastyle facade, pedimental sculptures, and the emperor's portrait features.

Obverse Iconography and Variations

The obverse of RIC II Trajan 575 (as) displays a right-facing portrait bust of Trajan. The emperor is depicted as mature, vigorous, and clean-shaven, adhering strictly to the idealized yet recognizable portrait tradition established for his decennalia and Dacian triumphal coinages. His head is crowned with a laurel wreath whose ties hang behind his neck, symbolizing military victory and religious authority. The portrait typically features drapery gathered on the left shoulder, creating a naturalistic shoulder contour that frames the lower edge of the truncation. In certain verified die varieties of this specific catalogue type, the drapery is supplemented or replaced by the aegis of Minerva or Jupiter on the left shoulder, symbolizing divine protection and imperial invulnerability. The profile presents Trajan's characteristic hairstyle, with straight bangs brushed forward across the forehead, a prominent bridge to the nose, and a firm, squared jawline. The surrounding epigraphic formula encircles the portrait continuously from the lower left to lower right, carefully spaced to prevent the letters from interfering with the laurel wreath or the back of the neck. The portrait execution exemplifies the classicizing style practiced by the Rome mint's master engravers during the prime of the Optimo Principi period, conveying civic dignity and executive authority.

Reverse Architectural Iconography

The reverse of this as features a sophisticated architectural composition depicting an octastyle temple facade. Within the central intercolumniation of the colonnade, a cult statue of Pax is visible, standing upright and holding an olive branch or cornucopia, embodying peace achieved and guaranteed through victorious arms. The temple facade consists of eight columns elevated upon a low podium with a flight of access steps, displaying classical proportional balance. Above the architrave, the triangular pediment is filled with intricate sculptural relief featuring the seated figure of Jupiter in the apex, flanked on either side by reclining allegorical figures representing river gods or civic personifications. Surmounting the gabled roofline are five individual statues: an acroterial central figure atop the peak, flanked by four lateral figures distributed along the roof slope and terminal cornices. This elaborate composition is generally associated with the restoration or dedication of an important temple in Rome, possibly connected to the Forum of Trajan, the Temple of Pax, or an imperial sanctuary honoring Divus Nerva or Jupiter. Because the die scale of an as is relatively compact, the engravers utilized high-relief modeling and geometric simplification to render the architectural elements legible to the user. The letters S C, signifying Senatus Consulto, are positioned prominently across the lower fields on either side of the temple columns, formally validating the senatorial authorization for striking base-metal coinages.

Epigraphy and Titulature Analysis

The inscriptions on RIC II Trajan 575 (as) convey the complex public titles and constitutional mandates of Trajan's middle reign. The obverse legend reads IMP CAES NERVAE TRAIANO AVG GER DAC P M TR P COS V P P, expanding into the dative case as Imperatori Caesari Nervae Traiano Augusto Germanico Dacico, Pontifici Maximo, Tribunicia Potestate, Consuli Quintum, Patri Patriae. The use of the dative case grammatically indicates that the coinage was dedicated to the emperor by the Senate and Roman people. The title Germanicus, adopted under Nerva in AD 97, and Dacicus, officially assumed in late AD 102 following the initial Dacian campaigns, securely fix the lower chronological threshold of the inscription. The reference to COS V denotes Trajan's fifth consulship, which commenced on January 1, AD 103, and remained his primary consular numeral until he entered his sixth consulship on January 1, AD 112. The reverse inscription reads S P Q R OPTIMO PRINCIPI, expanding to Senatus Populusque Romanus Optimo Principi, translating to 'The Senate and the Roman People to the Best of Princes.' This honorific designation, officially bestowed upon Trajan by the Senate, functioned as the defining ideological slogan of his reign. Flanking the temple in the lower reverse fields is the senatorial formula S C (Senatus Consulto), confirming the traditional authority under which copper-alloy denominations were struck at the Rome mint.

Typology and Chronological Classification

Within the standard classification established by Harold Mattingly and Edward A. Sydenham in Roman Imperial Coinage (RIC) Volume II, and further catalogued in the Online Coins of the Roman Empire (OCRE) project, the type designated as RIC II Trajan 575 (as) belongs to the expansive group of aes issues carrying the COS V title. The combination of COS V and the victory title Dacicus places the absolute chronological window of production between AD 103 and AD 111, before Trajan assumed his sixth consulship in AD 112. Numismatists including Paul L. Strack have sought to refine this eight-year bracket by analyzing stylistic developments in Trajan's portraiture and associating the architectural reverse with specific building programs or civic dedications in Rome, such as the major structural completions between AD 105 and 108. The type is paralleled by corresponding denominations within the same programmatic cycle, including sestertii and dupondii exhibiting related architectural motifs, although RIC 575 represents the distinct copper as version defined by its unique combination of obverse bust style, eight-columned temple facade, and specific legend arrangement. Minor die variations exist regarding the precise rendering of the drapery on the shoulder and the exact arrangement of the roof statuary, reflecting the involvement of multiple die cutters working concurrently within the Rome officinae during this intensive minting phase.

Circulation Patterns and Monetary Role

As an indispensable fraction of the imperial currency, the copper as circulated extensively across Rome, the Italian peninsula, and the western military provinces along the Rhine and Danube frontiers. Archaeological find assemblages from military forts, vici, and urban market centers regularly yield Trajanic asses bearing the COS V titulature, attesting to their high mint volume and robust utilitarian function. Because copper coins possessed negligible intrinsic metallic value compared to silver denarii or gold aurei, their exchange velocity in daily commerce was exceptionally high, leading to rapid surface abrasion and softened relief. Circulation of RIC II Trajan 575 (as) was primarily domestic and provincial, rarely traveling beyond imperial borders except through border military trade. While provincial civic coinages supplied local bronze needs in the eastern Mediterranean provinces, Rome-struck asses formed the core small-change medium for Italy and the western territories throughout the second century AD. Hoard evidence and site strata demonstrate that Trajan's base-metal coins remained in active commercial circulation for decades, frequently surviving alongside Flavian and Antonine issues until the general monetary re-evaluations and debasement pressures of the late second and early third centuries AD brought about the withdrawal or replacement of worn early imperial coppers.

References

1. Coins of the Roman Empire in the British Museum, Vol. III: Nerva to Hadrian. pp. 195-200
2. The Roman Imperial Coinage, Vol. II: Vespasian to Hadrian. pp. 284-285, no. 575
3. Online Coins of the Roman Empire: RIC II Trajan 575 (as). ric.2.tr.575_as
4. Untersuchungen zur romischen Reichspragung des zweiten Jahrhunderts, Teil I: Die Reichspragung zur Zeit des Traians. Stuttgart, 1931