Nero Orichalcum Dupondius RIC I (second edition) Nero 186

Monetary Reform and Denominational Structure

The introduction of RIC I (second edition) Nero 186 is intimately connected to the sweeping monetary reform enacted by Nero around AD 64. Before this restructuring, Julio-Claudian base-metal coin production at Rome had experienced prolonged hiatuses, leaving the Western provinces reliant on earlier issues, local imitations, or countermarked pieces. Nero's reform revised both precious and base-metal standards. While the denarius and aureus experienced reductions in weight and fineness, base-metal coinage resumed on a monumental scale with standardized metallurgic profiles. Under this new scheme, orichalcum (a bright golden brass alloy consisting of copper and zinc) was employed for both the sestertius and dupondius, while red copper was designated primarily for the as, semis, and quadrans. Because orichalcum was valued at approximately double the rate of copper per unit of weight, distinguishing denominations of similar size was paramount. The dupondius, tariffed at two asses or half a sestertius, was systematically distinguished on this type by the depiction of a radiate crown atop the emperor's head and the addition of the numerical mark II in the reverse exergue, leaving no ambiguity regarding its intended purchasing power in daily commerce.

Production Standards and the Mint of Rome

RIC 186 was struck exclusively at the imperial mint in Rome, which had been thoroughly reorganized to execute high-volume output following the monetary reform. Production of this dupondius type occurred alongside related issues celebrating architectural accomplishments and imperial virtues. The physical fabric of the issue adheres to the post-reform orichalcum standard, typically produced on thick, carefully cast flans weighing in the general range of 13 to 15 grams, though individual surviving specimens vary based on factory tolerances and subsequent surface corrosion. Roman mint workers employed heavy, engraved iron dies set into anvils, striking heated flans with hammer blows that captured intricate low- and high-relief elements. The engravers at Rome during this phase exhibited remarkable technical skill, rendering the architectural features of the reverse with layered perspective and detailing the emperor's mature portraiture with notable depth and verism.

Obverse Portraiture and Iconography

The obverse of RIC 186 displays the radiate head of Nero facing right. The treatment of the imperial portrait reflects the mature stylistic phase of the principate, featuring fleshy facial contours, a prominent chin, and elaborate waves of hair styled down the nape of the neck in a manner characteristic of Nero's Hellenistic-inspired court tastes. The radiate crown serves a dual function: it represents the solar iconography associated with Apollo and Sol, projecting divine protection and majesty, while functioning as a pragmatic denomination marker to signal the coin's status as a dupondius. Encircling the portrait is a continuous, carefully cut border of dots enclosing the complete titular legend. Die engravers preserved consistent proportions across obverse dies, ensuring the portrait dominated the visual field while leaving sufficient clearance for the surrounding inscription.

Reverse Iconography: The Macellum Magnum

The reverse design features an elaborate frontal perspective of the Macellum Magnum, the great provisions market situated on the Caelian Hill. Dedicated in AD 59, the complex was an essential hub for the sale of foodstuffs and luxury goods in Rome. The numismatic depiction captures the central architectural unit, a domed or conical two-story rotunda raised on a stepped podium, flanked by two lower porticoed wings with columned arcades. In the central bay, positioned above the flight of access steps, stands a male figure facing left, holding a long sceptre or staff. Numismatists and architectural historians have interpreted this figure either as a colossal cult statue erected inside the market tholos or as a personification associated with the market's administration and imperial abundance. Flanking the pavilion structure within the lower field are the large initials S C (Senatus Consulto), with the Roman numeral II placed centrally in the exergue beneath the ground line.

Epigraphy and Inscriptional Analysis

The inscriptional framework of RIC 186 incorporates extensive epigraphic formulas on both faces. The obverse legend reads NERO CLAVD CAESAR AVG GERM P M TR P IMP P P, expanding to 'Nero Claudius Caesar Augustus Germanicus, Pontifex Maximus, Tribunicia Potestate, Imperator, Pater Patriae.' This formula confirms Nero's imperial titles, supreme pontificate, tribunician authority, military acclamation, and role as father of the country. The omission of specific iteration numbers for the tribunician power and military acclamations is typical of base-metal series from this phase, which maintained generalized imperial titles to facilitate continuous striking across consecutive administrative years. The reverse legend is arranged in two distinct elements: MAC AVG in the upper field, an abbreviation for 'Macellum Augusti' (or 'Macellum Augustum'), declaring the market as an imperial foundation, paired with S C in the field to denote senatorial sanction for the issue, and the numeral II in the exergue to explicitly designate its value as two asses.

Typology and Chronological Placement

Within the typology established in Roman Imperial Coinage, RIC 186 forms part of a cohesive family of Macellum Magnum dupondii produced between approximately AD 64 and 67. The type is closely related to RIC 184 and 185, which feature similar architectural reverses but exhibit minor variations in obverse portrait direction, truncation, or legend forms. A parallel group of Macellum issues was also produced at the imperial mint of Lugdunum (Lyon), distinguished by a small globe at the truncation of the neck and subtle regional stylistic nuances, as well as the absence of explicit denomination numerals on certain reverse dies. Scholars place the strike dates of RIC 186 after the monetary reform of AD 64 and prior to the emperor's departure for Greece and the subsequent monetary dislocations of AD 67 and 68. The prominence of the Macellum type during this exact window likely served to reassure the populace of Rome that public infrastructure, market access, and food distribution were being maintained and restored following the physical devastation of the capital in AD 64.

Circulation Patterns and Monetary Role

As an orichalcum dupondius, RIC 186 fulfilled an indispensable role in daily urban transactions throughout Italy and the western provinces. Dupondii were circulated heavily for everyday retail transactions, including the purchase of grain, wine, olive oil, and ordinary provisions within the very market complexes celebrated on their reverse dies. Excavation data from Rome, Ostia, and across central Italy indicate that these post-reform Neronian orichalcum pieces circulated alongside contemporary asses and earlier Julio-Claudian issues. Over decades of circulation, the initial distinction between brass dupondii and copper asses could blur due to surface patina and wear; in such circumstances, the radiate crown on the obverse and the surviving traces of the exergual II provided unmistakable evidence of the denomination's tariffed value. Many specimens continued to circulate long after Nero's death, frequently enduring in trade through the Flavian period and into the early second century AD, as evidenced by hoards and site finds where Neronian base metals appear alongside Trajanic and Hadrianic coinage.

References

1. Coins of the Roman Empire in the British Museum, Volume I: Augustus to Vitellius. pp. 235-236
2. Roman Coins from the Earliest Times to the Fall of the Western Empire. pp. 112-117
3. Online Coins of the Roman Empire: RIC I (second edition) Nero 186. ric.1(2).ner.186
4. The Roman Imperial Coinage, Volume I: From 31 BC to AD 69 (revised edition). p. 165, no. 186
5. Roman History and Coinage, 44 BC - AD 69. pp. 102-108