Tiberius Dupondius, RIC I (second edition) Tiberius 46

Monetary Context and Denominational System

The dupondius was an essential component of the early imperial monetary system established by Augustus around 23 BC. Valued at two asses, eight dupondii equaled one silver denarius, and two dupondii equaled one brass sestertius. To prevent confusion between the dupondius and the similarly sized copper as, the imperial administration mandated the use of orichalcum, a golden-toned brass alloy composed predominantly of copper and zinc, for sestertii and dupondii. By contrast, asses and quadrantes were struck in unalloyed red copper. This color differentiation allowed users across the empire to identify denominations instantly upon exchange, even before reading the inscriptions or noting the specific iconographic markers that later became standard, such as the radiate crown introduced for emperors on dupondii under Nero. During the reign of Tiberius, imperial base-metal output in Rome followed a deliberate policy of institutional continuity. Base-metal emissions were not produced every calendar year in equal quantities; instead, they were struck in large, coordinated bursts to supply the civilian economy with reliable small change and to articulate key ideological messages. The issue of RIC I (second edition) Tiberius 46 formed part of a major fiduciary emission prepared during the middle of Tiberius's reign, meeting both commercial demands for liquidity in Rome and western markets and signaling the moral and dynastic virtues sustaining the Julio-Claudian house.

Production Standards and Minting at Rome

RIC I (second edition) Tiberius 46 was struck exclusively at the mint of Rome. In this period, the imperial capital maintained the primary facility for orichalcum and copper coinage destined for Italy and the western provinces, operating under regular administrative oversight. Although individual flans show minor variations caused by the manual casting and striking processes, dupondii of this issue were manufactured according to a recognized theoretical standard of approximately 12 to 14 grams, with typical diameters ranging between 27 and 30 millimeters. Flans were cast in molds and trimmed before being brought to red heat or cold struck between hardened iron or bronze dies. The metal composition represents traditional Roman orichalcum, containing roughly 15 to 20 percent zinc alloyed with copper. This high-zinc brass possessed a brilliant, bright yellow finish when fresh from the dies, creating a striking contrast against red copper asses. The metallurgical consistency achieved by the Rome mint during this period reflects rigorous control over alloy preparation, blank annealing, and mass production. Surviving specimens show careful die alignment, usually struck with an upright or near-upright axial relationship typical of the official Rome workshops.

Obverse Iconography and Interpretation

The obverse of the coin displays a refined female bust facing right, draped in classical garments. Her hair is arranged in soft waves along the forehead, gathered at the back into a neat knot or chignon, and she wears a prominent stephane or diadem embellished with delicate floral motifs. Directly beneath or flanking the bust is the identifying label IVSTITIA, designating the subject as the personification of Justice. This composition has generated extensive discussion in Roman numismatic scholarship. In Roman religious and political thought, Iustitia was an ancient virtue celebrated for maintaining equity, legal order, and civil harmony. However, the facial features on high-grade dies exhibit an individualized, mature portrait quality rather than pure abstraction. Consequently, many numismatists, including Harold Mattingly and C. H. V. Sutherland, have interpreted the figure as an idealized representation of Livia, Augustus's widow and Tiberius's mother, who had received the name Julia Augusta by the will of Augustus. Around AD 22, Livia suffered a grave illness that led to public vows and senatorial honors, providing a clear context for celebrating her public virtues through personified forms such as Iustitia, Pietas, and Salus Augusta on contemporary base-metal denominations.

Reverse Iconography and Composition

The reverse of RIC I (second edition) Tiberius 46 presents a stark, balanced, and epigraphic design. The center of the field is occupied by the large, deeply engraved initials S C, standing for Senatus Consulto, meaning 'by decree of the Senate.' Surrounding these two central letters, along the circumference of the coin, runs Tiberius's official imperial titular inscription: TI CAESAR DIVI AVG F AVGVST P M TR POT XXIIII. The prominent inclusion of S C was the hallmark of regular Roman base-metal coinage from the Augustan monetary reform until the late third century AD. While older numismatic scholarship viewed this formula as evidence of a dyarchy, or shared monetary authority between the emperor and the senate, modern historians recognize it as a constitutional fiction that reinforced the traditional dignity of the senate. Tiberius scrupulously maintained traditional republican forms in official pronouncements. By placing the imperial name and offices in a circular border around the senatorial acronym, the design visually encapsulates the collaboration between the Princeps and the Senate in the governance of the Roman state.

Inscriptions and Epigraphic Analysis

The legends on this dupondius are exceptionally concise on the obverse and fully developed on the reverse. The obverse legend consists solely of the nominative noun IVSTITIA, clearly identifying the personified concept depicted. In early imperial epigraphy, the Latin letter 'V' performed the vocalic role of modern 'U' as well as the consonantal 'V'. The reverse inscription reads: TI CAESAR DIVI AVG F AVGVST P M TR POT XXIIII. This expands into Tiberius's formal titulature: Tiberius Caesar, Divi Augusti Filius, Augustus, Pontifex Maximus, Tribunicia Potestate XXIIII. Each element served an explicit legitimizing function. 'Tiberius Caesar' gave his adopted name, while 'Divi Augusti Filius' (Son of the Divine Augustus) firmly established his dynastic descent and filial piety. 'Augustus' affirmed his imperial status, and 'Pontifex Maximus' declared his position as supreme pontiff of Roman state religion. Finally, 'TR POT XXIIII' indicates his twenty-fourth tenure of the tribunician power, the constitutional foundation of his civil authority. The letters are neatly cut in classic Roman imperial capitals with subtle triangular interpuncts between words.

Typology and Chronological Placement

RIC I (second edition) Tiberius 46 belongs to a tightly dated series of dupondii struck during Tiberius's twenty-fourth tribunician year. Tiberius first received the tribunician power in 6 BC, but after a long hiatus during his self-imposed retirement on Rhodes, it was renewed annually beginning in AD 4. Consequently, his twenty-fourth tribunician power ran from the summer of AD 22 to the summer of AD 23. Within the broader typography of Julio-Claudian coinage, this issue is intimately linked with two companion dupondius types featuring female personifications: one depicting Pietas veiled and draped (RIC I [second edition] Tiberius 43), and another depicting Salus Augusta facing right (RIC I [second edition] Tiberius 47). Together, these three types formed an integrated thematic group produced concurrently by the Rome mint. Furthermore, AD 22 was the pivotal year when Tiberius requested that his natural son Drusus Julius Caesar be granted tribunician power by the senate, cementing the dynastic succession. The coordinated release of these dupondii served both to celebrate the moral qualities preserving the state and to honor the imperial household during a critical juncture of administrative transition.

Circulation, Wear, and Archaeological Context

Coins of type RIC I (second edition) Tiberius 46 circulated extensively throughout Italy, the Iberian peninsula, Gaul, and the Rhine frontier. Because base-metal coinage was minted in massive numbers to sustain the retail economy, pay legionaries' everyday expenses, and facilitate small-scale urban trade, dupondii frequently remained in circulation for decades. Archaeological deposits from military camps in Germania and Britannia demonstrate that Julio-Claudian orichalcum dupondii continued to pass from hand to hand well into the Flavian period and occasionally into the second century AD. Over years of circulation, the golden color of the zinc-rich brass wore down to a dull brown or dark green patina, and the fine relief details of the floral stephane and facial features were gradually smoothed. Countermarks from military authorities are sometimes attested on earlier orichalcum coins of Augustus and Tiberius in frontier garrisons, confirming their prolonged acceptance and re-validation. In hoards, these dupondii appear alongside sestertii and asses, providing valuable archaeological markers for dating stratum contexts across the Roman world.

References

1. Roman Anniversary Issues: An Alternative Interpretation. pp. 38-45
2. Coins of the Roman Empire in the British Museum, Volume I: Augustus to Vitellius. pp. 131-132, no. 79
3. Online Coins of the Roman Empire: RIC I (second edition) Tiberius 46. ric.1(2).tib.46
4. The Roman Imperial Coinage, Volume I: From 31 BC to AD 69. pp. 87-97, no. 46