Trajan Silver Denarius RIC II Trajan 91

Monetary Context and Historical Setting

During the reign of Trajan, the silver denarius served as the backbone of daily commerce, military pay, and administrative expenditure throughout the Roman Empire. Trajan's accession in AD 98 initiated a period of sustained administrative reorganization and military expansion, culminating in the annexation of Dacia after two hard-fought campaigns between AD 101 and 106. The economic landscape of this period was defined by unprecedented inflows of bullion following the capture of the Dacian royal treasuries and silver and gold mines, which injected immense liquidity into imperial coffers. This influx enabled monumental building projects in Rome, substantial public subventions through the alimenta, and generous donatives to the legionaries and plebs. Within this vibrant monetary economy, the silver denarius remained struck at a nominal standard established under Domitian's later adjustments and preserved under Nerva, yielding a theoretical weight centered around 3.2 to 3.4 grams. The issue of RIC II Trajan 91 falls entirely within Trajan's fifth consulship, which commenced on January 1, AD 103, and lasted until he assumed his sixth consulship on January 1, AD 112. The historical backdrop of this coin was therefore shaped by the consolidation of Danubian victories, the celebration of imperial triumphs, and the deliberate construction of an enduring public image that transcended immediate military crises. In this context, issuing types centered on the theme of imperial eternity provided vital psychological reassurance to an empire recovering from civil strife under the late Flavians and asserting its global dominance.

Mint Operation and Production Techniques

All regular issues of RIC II Trajan 91 were produced at the imperial mint of Rome, which exercised an effective monopoly on silver denarius production for the Western and central empire during the High Principate. The Rome mint operated as a highly structured institution divided into multiple officinae, or administrative workshops, each staffed by specialized artisans including flan casters, engravers, scalptores, and hammerers. Flans for the denarius were prepared by casting circular blanks in open or bivalve moulds, followed by careful annealing and chemical blanching to enrich the silver content at the surface. Surviving specimens demonstrate the consistent application of manual strike mechanics, using a fixed lower die mounted in an anvil and a handheld upper die. The die alignment of this type predominantly adheres to the standard six o'clock or twelve o'clock orientation typical of Roman imperial mint practice in the early second century AD. Metallurgical analyses of Trajanic silver from this operational period indicate a fineness typically ranging between eighty-five and ninety percent silver, balanced by copper to improve mechanical hardness and durability during circulation. The massive production runs necessitated by imperial policy required the frequent cutting of replacement dies, which accounts for minor stylistic discrepancies in the treatment of the portrait curls, the folds of the drapery, and the precision with which the small celestial heads on the reverse are rendered. Despite these mechanical variations, the output maintains remarkable technical uniformity and artistic fidelity.

Obverse Portraiture and Iconography

The obverse of RIC II Trajan 91 displays a powerful and mature portrait bust of Trajan facing right. The imperial likeness exemplifies the celebrated 'decennalia' portrait style established in the central years of his reign, departing from the youthful realism of early issues toward an idealized, heroic aesthetic that emphasized gravitas, military fortitude, and sobriety. The emperor is depicted with his characteristic straight, combed-forward hair ending in a neat fringe across the low brow, a pronounced bridge of the nose, and a firm, set jaw. He wears a laurel wreath tied at the nape of the neck with two ribbon ties descending across the neck and upper back. The truncation of the bust is typically rendered with subtle drapery gathered over the left shoulder, though certain dies present a more extensively draped shoulder or a plain truncation where the drapery is minimized. The placement of the bust is carefully balanced within the circular flan, bordered by a neat ring of fine beads. The portraiture consciously avoids the flamboyant Hellenistic pathos of earlier dynasties, projecting instead the austere virtues of traditional Roman leadership. The overall composition underscores the ruler's physical vigor as imperator while simultaneously presenting him as the dutiful servant of the state, an aesthetic program closely tied to his Senate-sanctioned role as Optimus Princeps.

Reverse Iconography: Aeternitas and Cosmic Symbols

The reverse design of RIC II Trajan 91 presents one of the most intellectually sophisticated iconographic compositions of Trajan's reign, centered on the divine personification of Aeternitas. Aeternitas is depicted as a dignified female figure standing draped and veiled, with her body angled slightly toward the right. In her outstretched right hand she holds the head or miniature bust of Sol, crowned with radiant solar rays, while in her left hand she supports the head or miniature bust of Luna, crowned with a crescent moon. The inclusion of the solar and lunar emblems serves as a classic Greco-Roman allegory for cosmic eternity, evoking the eternal cycles of day and night and the perpetuity of the natural order under Roman dominion. Unlike common depictions of Aeternitas holding the phoenix or a sceptre, this specific composition with the celestial heads reflects deep theological themes popularized in earlier Flavian numismatics and reinvigorated under Trajan to assert that the Roman state and the principate were coextensive with the universe itself. The veiling of the figure signifies her sacred, timeless nature, while the heavy drapery falling in classical vertical folds conveys institutional permanence and tranquility. By displaying the celestial bodies within the grasp of imperial eternity, the coin assures the observer that the prosperity, peace, and security inaugurated by Trajan's conquests are destined to endure without end.

Epigraphy and Legend Structure

The inscriptions on RIC II Trajan 91 are executed in clean, classical Roman capitals and provide critical chronological and political markers for the emission. The obverse legend reads IMP TRAIANO AVG GER DAC P M TR P, an abbreviated formula that translates as 'Imperatori Traiano Augusto Germanico Dacico, Pontifici Maximo, Tribunicia Potestate' (To Emperor Trajan Augustus, conqueror of Germany, conqueror of Dacia, Chief Priest, invested with Tribunician Power). The use of the dative case 'Traiano' rather than the nominative highlights an honorific dedication, presenting the coinage as an offering of tribute to the ruler by the Roman people and Senate. On the reverse, the circumferential legend reads COS V P P S P Q R OPTIMO PRINC, which expands to 'Consuli Quinto, Patri Patriae, Senatus Populusque Romanus Optimo Principi' (Consul for the fifth time, Father of his Country, the Senate and the Roman People to the Best of Princes). Trajan's fifth consulship, referenced by COS V, securely anchors the beginning of this legend series to AD 103. The reverse field or exergue provides the identifying epithet AET AVG, an abbreviation for 'Aeternitas Augusti' (The Eternity of the Emperor), directly naming the allegorical figure. This complex epigraphic program encapsulates Trajan's constitutional authority, religious preeminence, military glory, and popular acclaim as the ideal ruler, while uniting the Senate and people in a collective celebration of imperial stability.

Typology, Classification, and Chronological Evolution

In modern numismatic scholarship, this coin is classified under the overarching reference RIC II Trajan 91, with Bernhard Woytek providing a refined classification in his monograph 'Die Reichspragung des Kaisers Traianus' under MIR 14, number 344. The chronological bracket for this specific type extends from AD 103 to 111, determined strictly by the presence of COS V and the absence of COS VI, the latter assumed in AD 112. Numismatists have further refined the internal dating of Trajan's fifth consulship issues based on stylistic shifts in portraiture and the progressive evolution of reverse legends. The inclusion of the title 'DAC' confirms that production commenced after the conclusion of the First Dacian War in late AD 102, while the reverse legend celebrating him as OPTIMO PRINC represents an epithet formally decreed in AD 103 and extensively used on coinage from AD 104 onward. Minor die varieties exist within the RIC 91 typology, predominantly involving minor differences in the drape of Trajan's bust, ranging from fully bare shoulders with simple neck truncation to distinct folds of a paludamentum visible on the left shoulder. Similarly, minor variations occur in the rendering of Sol and Luna, appearing either as stylized disembodied heads or as tiny draped busts with explicit radiating spikes and crescent horns. The type is closely affiliated with related denarii of the same emission cycle featuring Virtus, Felicitas, and Pax, all sharing the formulaic COS V reverse framework.

Circulation Patterns, Hoard Evidence, and Monetary Impact

RIC II Trajan 91 circulated extensively across the vast geographic expanse of the Roman Empire, as evidenced by its regular presence in major hoards discovered in Britain, Gaul, the Rhineland, the Danubian provinces, and Roman Italy. Silver denarii minted during Trajan's fifth consulship were produced in exceptionally large numbers to finance imperial logistics, pay the substantial legionary forces stationed on the northern frontiers, and facilitate commercial transactions in urban markets. Because Trajan later initiated a systematic recall and melting down of worn, pre-Neronian Republican and Julio-Claudian silver around AD 107, issues of his own reign quickly came to dominate the circulating silver pool. Wear analysis on excavated specimens indicates that RIC II Trajan 91 remained in active circulation for decades, frequently surviving well into the Antonine and Severan eras. In hoards deposited during the late second and early third centuries AD, such as those buried during the Marcomannic Wars or under Septimius Severus, specimens of this type routinely appear with moderate to heavy surface abrasion, reflecting sustained daily use. Furthermore, contemporary plated counterfeits, known as fourrées, have been documented in frontier zones, demonstrating that the high purchasing power of the Trajanic denarius made it a frequent target for unofficial local replication. Its enduring presence in hoards underscores both the economic success of Trajan's silver currency and the broad public familiarity with its reassuring theological imagery.

References

1. Coins of the Roman Empire in the British Museum, Volume III: Nerva to Hadrian. pp. 67-68, nos. 245-247
2. Online Coins of the Roman Empire: RIC II Trajan 91. ric.2.tr.91
3. The Roman Imperial Coinage, Volume II: Vespasian to Hadrian. p. 251, no. 91
4. Die Reichspragung des Kaisers Traianus (98-117). MIR 14, no. 344