Augustus Denarius, RIC I (second edition) Augustus 64

Monetary Context and Augustan Currency Reform

The monetary climate of the late 20s and teens BC was marked by profound transition as Augustus sought to stabilize the Roman currency system after decades of civil conflict. While triumviral moneyers in Rome had produced uneven and politically charged coinages, the immediate post-Actium period required vast injections of reliable, high-grade precious metal to satisfy military obligations, facilitate administrative reconstruction, and support provincial trade. In the western provinces, particularly the Iberian peninsula, the conclusion of the Cantabrian Wars (29-19 BC) concentrated extensive military forces that necessitated dedicated regional mint facilities capable of producing regular silver denarii and gold aurei. RIC I (second edition) Augustus 64 belongs to this phase of decentralized yet tightly controlled western production, operating alongside issues often associated with Caesaraugusta and Emerita. The production of fine silver denarii in Hispania functioned not only as an economic instrument for troops and local commerce, but also as a premier vehicle for propagating the official imagery and civic benefactions of the newly established Principate.

Mint Organization and Production at Colonia Patricia

In the revised second edition of Roman Imperial Coinage, C. H. V. Sutherland attributed this distinctive stylistic group of coinages to the mint of Colonia Patricia, the Roman colonia established at Corduba in Hispania Baetica. Earlier numismatic studies, including Harold Mattingly's initial volume of Coins of the Roman Empire in the British Museum, had assigned these coins to an unidentified Spanish military mint or tentatively to Caesaraugusta. Sutherland demonstrated that Colonia Patricia, serving as a prominent provincial capital and administrative centre in southern Spain, possessed the logistical infrastructure, proximity to the silver-rich Sierra Morena mines, and engraver talent required to execute high-volume imperial coinage. The denarii attributed to Patricia display exceptional engraving technique, distinguished by deep relief, elegant proportions, and fine lettering. Production was carried out under strict weight standards, with target weights generally clustering around 3.7 to 3.9 grams of high-purity silver. Die axes within this series vary, as systematic fixed die orientation had not yet become a universal practice across imperial branch mints.

Obverse Portraiture and Ideological Representation

The obverse of RIC I (second edition) Augustus 64 features a bare head of Augustus turned toward the left. This left-facing orientation is a deliberate typological variant within the series, appearing alongside the more common right-facing bust catalogued as RIC 63a. The portrait is rendered in an idealized, classical Augustan style that abandoned the unsparing verism typical of Late Republican portraiture. Augustus is shown with smooth facial contours, neatly arranged locks of hair descending across the forehead, and an alert, calm expression that projects eternal youthful authority. Crucially, the portrait lacks a laurel wreath, diadem, or military ornament; the bare head reflects the princeps presenting himself primarily as a citizen and magistrate rather than an overt autocrat or monarch. The engraving of the hair, ear, and jawline on the Colonia Patricia dies demonstrates a high degree of artistic sophistication, reflecting the work of skilled die-cutters who translated official metropolitan models into regional dies.

Reverse Iconography: The Temple of Jupiter Tonans

The reverse of RIC 64 is devoted to a detailed architectural depiction of a hexastyle temple, defined by six frontal columns supporting an entablature and triangular pediment. Within the central intercolumniation stands a cult statue of Jupiter Tonans facing left. The deity is depicted nude or semi-draped, holding a thunderbolt (fulmen) in his extended right hand and resting his left hand upon a tall vertical sceptre. This representation commemorates the monumental temple of Jupiter Tonans dedicated by Augustus on the Capitoline Hill in Rome on September 1, 22 BC. Suetonius records that during Augustus's Cantabrian expedition in 26 BC, a lightning bolt struck the litter carrying the emperor, killing the slave who walked ahead with a torch. In gratitude for his miraculous preservation, Augustus vowed a sanctuary to Jupiter the Thunderer. By placing the newly dedicated Capitoline temple on denarii struck in Spain, the administration created an explicit ideological bridge connecting the emperor's providential survival during the Spanish campaigns with his public piety and architectural patronage in the capital.

Epigraphy and Titulature

The inscriptions on RIC 64 are remarkably succinct and deliberate, omitting the elaborate cursus honorum and tribunician dates that characterized later imperial coinages. The obverse carries the legend CAESAR AVGVSTVS, arranged radially around the left-facing head. This combination of the inherited family name Caesar and the sacred title Augustus, conferred by the Senate in 27 BC, encapsulated the fundamental basis of his political legitimacy and moral authority. The reverse features the abbreviated dedicatory legend IOV TON, positioned in the field flanking the temple facade or in the exergue. The inscription represents an abbreviation of the dative form Iovi Tonanti ('To Jupiter the Thunderer'). This dedicatory grammar clarifies that the reverse type is not merely an illustrative architectural study, but a formal religious dedication offered to the deity on behalf of the emperor and the Roman state.

Typology and Chronological Classification

Within the comprehensive framework established by modern numismatists, RIC I (second edition) Augustus 64 is assigned securely to 19 BC, forming part of a coordinated emission of temple types struck at Colonia Patricia. Sutherland subdivided the Spanish production of Augustus into sequential stylistic phases, with the temple issues representing the culmination of the Patricia denarius output. This typological group includes parallel reverse designs depicting the circular temple of Mars Ultor and the round shrine of Jupiter Tonans, as well as compositional variants of the hexastyle temple. The specific variant RIC 64 is distinguished strictly by the combination of the left-facing bare head on the obverse and the hexastyle temple with IOV TON on the reverse; the right-facing counterpart is classified under RIC 63a and 63b depending on minor placement of legends and pediment details. Because these issues do not carry annual magistracies or imperial acclamations, their absolute dating relies on historical synchronisms with the dedication of the Capitoline temple in 22 BC, the return of the Parthian standards in 20 BC, and stylistic links to contemporaneous aurei.

Circulation, Hoard Evidence, and Monetary Impact

Although minted in southern Hispania, denarii of the Patricia temple series were not confined to local circulation. Hoard evidence demonstrates that these coins travelled rapidly throughout the western empire, following military supply lines and inter-provincial trade corridors. Significant concentrations of Augustan Spanish denarii have been recorded in military camps along the Rhine and upper Danube frontiers, where legionary detachments received silver coinages struck across various provincial workshops. Because of their high silver fineness, typical of early Augustan currency before slight debasements in later reigns, denarii such as RIC 64 remained in circulation for generations. They regularly appear in hoards deposited during the Claudio-Neronian period and even as late as the Flavian era, frequently exhibiting substantial surface wear indicative of extended commercial utility. Their enduring presence in the monetary stock of Gaul, Britain, and Germania underscores the effectiveness of Augustan branch mints in establishing an empire-wide silver currency.

References

1. Coins of the Roman Empire in the British Museum, Volume I: Augustus to Vitellius. pp. 63-64
2. Online Coins of the Roman Empire (OCRE): RIC I (second edition) Augustus 64. RIC I (second edition) Augustus 64
3. The Roman Imperial Coinage, Volume I: From 31 BC to AD 69 (revised edition). pp. 46-48, no. 64