Trajan
Trajan, born Marcus Ulpius Traianus in Hispania Baetica, served as Roman emperor from 98 AD until his death in 117 AD. Remembered as one of the Five Good Emperors, he was officially acclaimed by the Roman Senate as Optimus Princeps, or 'best ruler.' Renowned as a brilliant military commander, Trajan expanded the Roman Empire to its greatest territorial extent through the conquest of Dacia, the annexation of Nabataea as Arabia Petraea, and sweeping campaigns against the Parthian Empire in Armenia and Mesopotamia. Beyond his martial achievements, Trajan was celebrated for civic philanthropy, extensive public works throughout Italy and the provinces, and respectful cooperation with the Senate.
Full Ruler HistoryCoin Gallery
1 specimensPhotograph credits
- KHM-ID1210 Obverse: Photoatelier, KHM; Kunsthistorischen Museum Wien, Münzkabinett · Photograph: CC BY-NC-SA 3.0 AT · Original title: Traianus · Source rendition retained; no further image edits by this collector. · Catalogue data: Kunsthistorischen Museum Wien, Münzkabinett · CC BY-SA 4.0 · Structured catalogue facts normalized for TerraNumis; original source retained. · Type data: American Numismatic Society · ODbL · Source evidenceReverse: Photoatelier, KHM; Kunsthistorischen Museum Wien, Münzkabinett · Photograph: CC BY-NC-SA 3.0 AT · Original title: Traianus · Source rendition retained; no further image edits by this collector. · Catalogue data: Kunsthistorischen Museum Wien, Münzkabinett · CC BY-SA 4.0 · Structured catalogue facts normalized for TerraNumis; original source retained. · Type data: American Numismatic Society · ODbL · Source evidence
- Mint
- Rom
- Weight
- 3.16 g
- Diameter
- 19 mm
- Die axis
- 6 h
- Museum
- Kunsthistorischen Museum Wien, Münzkabinett
- Catalogue reference
- RIC II Trajan 183
Monetary and Historical Context
The denarii classified under RIC II Trajan 183 were minted in the heart of Trajan's reign, a period marked by unprecedented imperial expansion, administrative consolidation, and intensive infrastructure spending. Following the conclusion of the First Dacian War in AD 102 and the final annexation of Dacia in AD 106, the Roman state experienced an influx of precious metals from the conquered Dacian royal treasures. This massive acquisition of bullion revitalized Roman state finances and provided the resources required to fund immense public works in Rome, including the construction of Trajan's Forum and the great public baths. Within this fiscal climate, the denarius served as the principal transactional currency for state payments, bureaucratic salaries, and legionary disbursements. During Trajan's fifth consulship, which spanned from AD 103 through AD 111, the imperial administration maintained the weight and fineness standards of the silver denarius that had stabilized under Domitian and Nerva. Although Trajan would later implement a moderate reduction in denarius fineness and recall older Republican and early imperial silver coinages around AD 107, issues struck during the mid-to-late 100s AD formed the core of the empire's liquid monetary stock. The reverse type of RIC II Trajan 183, featuring Genius performing a sacrifice, articulated a narrative of communal abundance and divine piety, reassuring both the civilian elite and the military of continued divine favor.
Production and Mint Organization
Production of RIC II Trajan 183 was concentrated exclusively at the central imperial mint of Rome. Operating under the oversight of imperial equestrian procurators and freedmen administrators, the Rome mint was capable of generating enormous volumes of precious metal coinage through synchronized, multi-officina workshops. Metallurgical analysis of denarii from this period demonstrates an average gross weight between 3.20 and 3.40 grams, with a struck diameter typically ranging between 18 and 20 millimeters. The silver purity of Trajanic denarii during the fifth consulship hovered around 80 to 85 percent, reflecting the prevailing metallurgical standards before the comprehensive recoinage campaigns of the late 100s AD. Dies for this type were cut by master celators whose stylistic work achieved a high level of plastic realism and classical balance. Obverse dies were prepared with deep portrait modeling, rendering Trajan's low-cropped hair and stern profile with fidelity. The addition of the aegis on the shoulder required delicate engraving, rendering the goatskin texture and serpent motifs. Reverse dies show consistent proportional treatment of the human form, depicting Genius in balanced contrapposto beside the altar. The alignment of obverse to reverse dies was predominantly set to a six o'clock or twelve o'clock orientation, typical of the regularized die-axis practices enforced at the Rome mint.
Obverse Iconography and Attributes
The obverse of RIC II Trajan 183 displays a right-facing portrait bust of Trajan wearing a laurel wreath, adorned with an aegis. In Roman portraiture, the laurel wreath conveyed military victory and civic imperium, honoring the triumphs that earned Trajan his triumphal agnomina. The presence of the aegis, however, elevates the portrait beyond standard civic representation. Historically associated with Jupiter and Minerva, the aegis was an attribute symbolizing divine protection, invulnerability, and supreme sovereign authority. Numismatists note subtle stylistic variations across surviving dies of this issue. On some dies, the aegis is rendered prominently as a protective mantle clasped across the chest or draped closely over the left shoulder, occasionally detailed with small gorgoneion emblems or writhing snake fringes. On others, it appears in a more restrained, stylized form on the lower truncation of the neck or shoulder. Trajan's profile is characterized by a high forehead, straight nose, and firmly set jaw, embodying the austere, soldierly ideal favored by the princeps over the elaborate dynastic hairstyles of previous eras.
Reverse Iconography and Attributes
The reverse iconography of RIC II Trajan 183 features the figure of Genius standing facing left. The deity is depicted bare-chested and largely naked, with classical drapery wrapped around the waist and hanging down over the lower limbs. In his outstretched right hand, Genius holds a patera, a shallow libation dish, tilting it downward to perform a sacrifice over a low, blazing altar positioned at his feet. In the crook of his left arm, he cradles a large, upright cornucopiae overflowing with fruits and ears of grain. In Roman religion, Genius represented the divine, generative spirit inherent in every individual, community, or institution. When depicted on imperial coinage in conjunction with sacrificial accoutrements and the cornucopiae, the image embodies the Genius Populi Romani (the collective spirit of the Roman people) or the Genius Augusti (the protecting spirit of the emperor). The act of sacrifice underlines the emperor's fulfillment of his religious obligations, while the cornucopiae asserts that imperial rule directly ensures material prosperity, peace, and abundance throughout the Roman world.
Epigraphy and Legends
The obverse inscription reads IMP TRAIANO AVG GER DAC P M TR P COS V P P, expanding to Imperatori Traiano Augusto Germanico Dacico, Pontifici Maximo, Tribunicia Potestate, Consuli Quintum, Patri Patriae. This elaborate sequence represents one of the most comprehensive epigraphic titulatures seen on Roman coinage. It begins in the dative case (Traiano Augusto), indicating that the coinage was dedicated to the emperor by the Senate and people of Rome. The titles Germanicus (received in AD 97) and Dacicus (adopted late in AD 102) celebrate his northern military achievements. The mention of his fifth consulship (COS V) securely anchors the initial striking of the issue to AD 103 or later, while Pontifex Maximus and Pater Patriae record his supreme religious oversight and status as father of the country. The reverse inscription, S P Q R OPTIMO PRINCIPI, expands to Senatus Populusque Romanus Optimo Principi. Translated as 'The Senate and the Roman People, to the Best of Princes,' this legend echoes the dative dedication of the obverse. Trajan had unofficially been hailed as Optimus by the Senate early in his reign, but from AD 103 onward the formula became a ubiquitous reverse motto across imperial denarii, framing every visual achievement of the regime as an expression of the Senate's gratitude for his benevolent governance.
Typology and Chronological Classification
In the standard reference corpus of Roman Imperial Coinage, this coin is designated as RIC II Trajan 183. Within Bernhard Woytek's comprehensive monograph Die Reichsprägung des Kaisers Traianus (MIR 14), the issue is categorized under the extensive S P Q R OPTIMO PRINCIPI series struck during the fifth consulship. Because Trajan's fifth consulship began on January 1, AD 103, and his sixth consulship did not commence until AD 112, coins bearing the formula COS V without higher iteration numbers were struck throughout this eight-year span. Woytek's chronological refinements subdivide the COS V period into several production phases based on portrait style, bust drapery variations, and hoard composition. The specific type featuring the laureate bust with aegis accompanied by Genius sacrificing over an altar belongs to the middle phases of the fifth consulship, produced in parallel with related reverse types depicting Felicitas, Annona, Pax, and personified conquered provinces. While closely related denarii depict Trajan with a simple laureate head or draped bust, RIC 183 is distinguished specifically by the presence of the aegis.
Circulation, Hoards, and Archaeological Evidence
Denarii of the S P Q R OPTIMO PRINCIPI series, including RIC 183, achieved widespread distribution across the Mediterranean basin and along the imperial frontiers. Substantial numbers of these denarii have been recovered from major coin hoards discovered in Britannia, Germania, the Danube provinces, and the Levant. Trajan's major administrative recoinage around AD 107 effectively demonetized worn pre-Neronian Republican denarii, elevating the proportion of contemporary Trajanic silver in civilian markets and military camps. Wear analysis on recovered specimens demonstrates that Trajan's COS V denarii remained active in monetary circulation for decades, frequently appearing in Antonine and Severan hoards alongside issues of Hadrian and Antoninus Pius. Archaeological finds from military fortresses along the Rhine and Danube limen indicate that these coins were integral to troop disbursements following the Dacian campaigns, serving as enduring instruments of both daily economic exchange and imperial propaganda throughout the second century AD.
Catalog Data
- Denomination
- Denarius
- Material
- Silver
- Series date range
Authority and vocabulary links: Nomisma.org.
References
- Coins of the Roman Empire in the British Museum, Vol. III: Nerva to Hadrian. Trajan, no. 195-197
- The Roman Imperial Coinage, Vol. II: Vespasian to Hadrian. p. 257, no. 183
- Online Coins of the Roman Empire: RIC II Trajan 183. ric.2.tr.183
- Die Reichsprägung des Kaisers Traianus (98-117). Moneta Imperii Romani 14
