Trajan Gold Aureus, RIC II Trajan 49 (aureus)

Monetary Context and Denominational Role

The aureus established by Augustus and reformed under Nero remained the backbone of the Roman imperial monetary system at the opening of the second century AD. Valued at twenty-five silver denarii, one hundred sestertii, or four hundred asses, the denomination carried immense purchasing power and was typically reserved for major imperial payments, including donatives to the legionaries and the Praetorian Guard, large-scale public contracts, and elite fiscal transfers. Under Domitian, the aureus had experienced a temporary elevation in fineness and weight, but Nerva and Trajan largely adhered to the post-Neronian weight standard where roughly forty-five aurei were struck from a Roman pound (libra) of gold, yielding a theoretical weight standard of approximately 7.2 to 7.3 grams of high-purity gold. During Trajan's fourth consulship (AD 101), the Roman state was preparing for and launching major offensive operations across the Danube against the Dacian kingdom ruled by Decebalus. The logistics of the First Dacian War demanded substantial outlays of high-value coin to pay senior officers, purchase cavalry remounts, and fund auxiliary and legionary units mobilized from across the European provinces. RIC II Trajan 49 (aureus) was struck precisely within this fiscal environment, serving not merely as economic bullion but as an authoritative ideological statement circulating among the military command and the Roman aristocracy.

Production and Mint Organization

All regular imperial gold coinage of Trajan during this period was concentrated exclusively at the principal mint of Rome. Operating under the ultimate authority of the princeps and managed by the procurator monetae with equestrian oversight, the Roman mint commanded the technical infrastructure, skilled engravers, and administrative apparatus required to maintain the rigorous purity and metrological consistency of the gold coinage. Gold flans were cast individually to close weight tolerances before being heated and hand-struck between engraved bronze or iron dies. The mint was organized into specialized workshops, known as officinae, which shared the workload of imperial production across gold, silver, and bronze denominations. The engraving of the dies for RIC II Trajan 49 (aureus) reflects the high classical standards of the early Trajanic period. The portraiture is crisp, naturalistic, and sober, while the reverse figure of Hercules exhibits balanced anatomical proportion and careful compositional framing that closely imitate contemporary monumental statuary.

Obverse Design and Portraiture

The obverse of RIC II Trajan 49 (aureus) depicts the laureate head of Trajan facing right. The truncation of the neck is neatly finished, with the ribbon ties of the laurel wreath extending downward across the nape. Trajan is shown with characteristic early imperial features: a low, flat brow, straight hair brushed forward in the traditional Julio-Claudian and adoptive style, a firm jawline, and a prominent, slightly aquiline nose. This portrait style, classified in modern scholarship as the early adoptive or first portrait group of Trajan, presents the ruler in an idealized yet sternly civic manner, deliberately eschewing the ornate hyper-realism or excessive personal mannerisms of the Flavian rulers. The laurel wreath signifies both victory and sacred imperial authority, reflecting Trajan's celebrated military successes in Germania along the Rhine frontier prior to his accession. The placement of the bust is balanced symmetrically within the circular die field, surrounded by an unbroken legend beginning from the lower left.

Reverse Iconography: Hercules on Base

The reverse of the coin presents a full-length, frontal figure of a youthful or heroic Hercules standing atop a low rectangular base or plinth. Hercules is depicted entirely naked, standing in a classical contrapposto posture with his weight shifted onto his right leg. In his right hand, he holds his knotted club pointing downward toward the ground, while the pelt of the Nemean lion is draped gracefully over his extended left arm, its paws hanging freely. The inclusion of a visible base or plinth is a deliberate numismatic convention indicating that the die engraver reproduced a specific cult statue or monumental artwork erected in Rome. Trajan possessed a lifelong personal devotion to Hercules, a deity closely associated with physical endurance, civic benefaction, and the pacification of the uncivilized periphery through noble labor (aerumnae). For an emperor embarking upon the strenuous conquest of Dacia, Hercules served as an ideal divine model. The hero's downward-resting club suggests victory achieved or poised readiness rather than immediate combat, conveying a sense of enduring strength, moral rectitude, and divine guardianship over the Roman state.

Inscriptions and Epigraphic Analysis

The inscriptions on RIC II Trajan 49 (aureus) are executed in high-quality Roman monumental capitals, characteristic of the finest output of the Rome mint. The obverse legend reads: IMP CAES NERVA TRAIAN AVG GERM. This expands to Imperator Caesar Nerva Traianus Augustus Germanicus. Here, Trajan asserts his position as military supreme commander (Imperator), his membership in the imperial lineage through his adoptive father Nerva (Caesar Nerva Traianus), his supreme constitutional standing (Augustus), and his hard-won victory title celebrating pacification along the Germanic frontier (Germanicus). The reverse legend reads: P M TR P COS IIII P P, expanding to Pontifex Maximus, Tribunicia Potestate, Consul Quartum, Pater Patriae. This concise sequence summarizes Trajan's primary constitutional and religious powers: chief priest of the state religion (Pontifex Maximus), holder of the tribunician power providing sacred inviolability and civil initiative (Tribunicia Potestate), consul for the fourth time (Consul Quartum), and father of the fatherland (Pater Patriae). The absence of higher consulship numerals or additional victory titles such as Dacicus provides exact chronological brackets for the issue.

Typology and Chronological Classification

RIC II Trajan 49 (aureus) is chronologically bounded by the epigraphic elements of its reverse legend. Trajan entered his fourth consulship on 1 January AD 101 and did not enter his fifth consulship until 1 January AD 103. Furthermore, Trajan accepted the prestigious victory title Dacicus in late AD 102 following his initial successes over Decebalus. Because RIC II Trajan 49 lacks the title Dacicus, numismatists securely place the striking of this aureus between early AD 101 and autumn AD 102. In Bernhard Woytek's comprehensive corpus of Trajanic coinage (MIR 14), this issue forms part of the prominent Fourth Consulship gold emissions. While Hercules types had occasionally appeared under earlier emperors, Trajan revitalized the imagery into a cohesive thematic program. The type is closely related to companion silver denarii bearing similar Hercules motifs, but the gold aureus version is notable for its exceptional engraving detail and the precise rendering of the sculptural plinth beneath the deity.

Circulation, Hoard Evidence, and Survival

Because aurei were struck from nearly pure gold, they experienced far lower loss and physical wear rates than everyday bronze or silver coins. Rather than circulating in open market transactions, gold coins typically remained in private savings, banking reserves, military pay chests, or imperial tax remittances. During the Trajanic period, substantial quantities of gold coins were carried to the Danubian frontier to finance military logistics, and many were subsequently cached in hoards during regional disturbances. In hoards buried across Italy, Gaul, and the frontier provinces during the mid-to-late second century, Trajanic aurei frequently appear alongside coins of Domitian, Nerva, and Hadrian. Trajan's subsequent recall and remelting of worn pre-Neronian silver and selected older gold issues, recorded by Cassius Dio, further elevated the primacy of contemporary issues like RIC II Trajan 49. Today, surviving specimens of this specific type are scarce, held across major institutional cabinets and private collections, providing essential insight into the artistic, political, and economic priorities of the early Roman Empire.

References

1. Coins of the Roman Empire in the British Museum, Vol. III: Nerva to Hadrian. pp. 41-42, nos. 86-88
2. Online Coins of the Roman Empire: RIC II Trajan 49 (aureus). ric.2.tr.49_aureus
3. The Roman Imperial Coinage, Vol. II: Vespasian to Hadrian. p. 248, no. 49
4. Die Reichsprägung des Kaisers Traianus (98-117), Moneta Imperii Romani 14. MIR 14, no. 100f