Tiberius Sestertius, RIC I (second edition) Tiberius 60

Monetary and Historical Context

During the principate of Tiberius (AD 14 to 37), the monetary system established under Augustus remained the baseline for imperial currency across the Roman Mediterranean. The sestertius functioned as the premier large-denomination base-metal coin, valued at four asses or one quarter of a silver denarius. Struck in orichalcum, a golden-toned copper-zinc alloy (brass), the denomination combined substantial physical weight with an expansive surface area, making it an ideal vehicle for state announcements and symbolic imagery. While early Tiberian bronze coinage had placed substantial emphasis on the deification of Augustus and the dynastic legitimacy of the Julio-Claudian family, issues from the mid-30s AD took on a distinct character. By AD 35, Tiberius had long withdrawn to the island of Capri, leaving administrative management largely in the hands of prefects and magistrates in Rome. The appearance of RIC I (second edition) Tiberius 60 coincides with Tiberius's thirty-seventh year of tribunician authority, an era in which imperial imagery deliberately reiterated conventional themes of military prestige, triumphal authority, and senatorial collaboration despite the emperor's prolonged physical absence from the capital.

Minting and Metallurgical Execution

RIC I (second edition) Tiberius 60 was manufactured exclusively at the imperial mint in Rome. The production of sestertii during this period required high technical proficiency to cast thick, uniform orichalcum flans and strike them with deeply engraved steel dies. Flans for Julio-Claudian sestertii typically ranged between 25 and 28 grams, with diameters spanning 34 to 37 millimetres, although individual specimens exhibit standard ancient manufacturing variations in weight and die alignment. The metallurgical composition of orichalcum provided a bright, brassy hue upon release into circulation, distinguishing the sestertius and dupondius from the pure copper asses and quadrantes. The Rome mint employed skilled engravers capable of rendering intricate narrative relief within the miniature register of the chariot car panels, reflecting the centralized aesthetic standard of the senatorial-imperial mint apparatus.

Obverse Design and Iconography

The obverse of RIC I (second edition) Tiberius 60 dispenses entirely with the emperor's portrait. Instead, the design presents an empty triumphal quadriga advancing slowly to the right. The chariot car is rendered with exceptional detail, featuring sculpted narrative reliefs on its exposed side: figures of Victory, classical trophies of arms, and subdued barbarian captives. The horses are depicted pacing in unison, adorned with decorative harness trappings. This motif evokes the solemnity of the Roman triumph, celebrated in absentia or commemorating the historical campaigns of Tiberius and Germanicus. The empty quadriga served as a sacred vessel carrying invisible divine protection or honouring the absent imperator, grounding the coin in the ceremonial vocabulary of Roman public triumphs without requiring a direct personal likeness.

Reverse Composition and Heraldry

The reverse of the coin is dominated by the prominent initials S C, standing for Senatus Consulto ('by decree of the Senate'), engraved in bold, central majuscule characters. This central epigraphic device was standard for imperial base-metal coinage struck at Rome, signalling the constitutional tradition whereby the Senate formally authorized the striking of aes denominations while acknowledging imperial supremacy. Encircling this central monogram is a continuous circular legend running clockwise between an outer beaded border and the core field. The layout emphasizes balanced epigraphic spacing, ensuring maximum legibility of the imperial titles across the perimeter.

Inscriptions and Epigraphic Analysis

The reverse inscription provides the decisive historical, legal, and chronological anchor for the issue. The legend reads: TI CAESAR DIVI AVG F AVGVST P M TR POT XXXVII. In expanded Latin, this denotes Tiberius Caesar Divi Augusti Filius Augustus, Pontifex Maximus, Tribunicia Potestate XXXVII ('Tiberius Caesar, son of the divine Augustus, Augustus, Pontifex Maximus, invested with Tribunician Power for the thirty-seventh time'). The obverse carries no legend, leaving all epigraphic weight to this reverse formulation. The specific renewal count of TR POT XXXVII securely dates the initiation of the die series between late June of AD 35 and June of AD 36. This formulaic titling reaffirmed Tiberius's filial connection to Augustus, his supreme religious leadership as chief pontiff, and his tribunician authority, the legal foundation of his executive civil power.

Typological Position and Chronological Sequence

In the standard reference classification of Roman Imperial Coinage, RIC I (second edition) Tiberius 60 occupies a defined chronological place in the final bronze emissions of Tiberius's principate. It belongs to a compact series of related sestertii issued with tribunician counts TR POT XXXVII and TR POT XXXVIII (AD 35 to 37). Neighboring catalogue types include contemporary issues featuring an empty carpentum drawn by mules (RIC 66), temple frontages (RIC 68), or the quadriga facing left (RIC 61). While closely related in module, fabric, and epigraphic style to these companion varieties, type 60 is strictly defined by the combination of the right-facing decorated quadriga on the obverse and the specific thirty-seventh tribunician iteration on the reverse. Surviving specimens confirm that reverse dies were carefully updated as the emperor entered each subsequent year of power.

Circulation, Hoarding, and Archaeological Distribution

As the highest-value copper-alloy denomination produced at Rome, sestertii of the quadriga type circulated widely throughout Italy and the western provinces, including Gaul, Hispania, and the military outposts along the Rhine frontier. Because base-metal coinage fulfilled everyday commercial transactions, specimens typically experienced decades of active physical circulation, appearing in archaeological deposits and multi-reign hoards alongside sestertii of Claudius, Nero, and the Flavians. Significant surface wear, countermarking in provincial garrison contexts, and patination patterns across recovered specimens illustrate their protracted utility within the monetary economy long after Tiberius's death in AD 37.

References

1. Coins of the Roman Empire in the British Museum, Volume I: Augustus to Vitellius. pp. 136-137
2. Online Coins of the Roman Empire: RIC I (second edition) Tiberius 60. ric.1(2).tib.60
3. The Roman Imperial Coinage, Volume I: From 31 BC to AD 69 (revised edition). p. 98, no. 60
4. Roman History and Coinage, 44 BC to AD 69. pp. 64-67