Marcus Aurelius: Gold aureus Coinage

Coinage Scope and Selected Issues

The Gold aureus coinage issued in the name of Marcus Aurelius includes issues distinguished by their portraits, inscriptions, reverse designs and mint attribution. This study concentrates on the Victory issues of 167-168 CE, rather than presenting one design as the entire denomination.

The issue dates and detailed iconographic descriptions below apply to the discussed groups, not automatically to every coin bearing the ruler's name. Other types and mints require their own catalogue comparison. An individual gallery coin must be assessed from its own inscriptions and institutional record; its measurements and provenance do not define the whole coinage.

Historical Context

Upon the death of Antoninus Pius on March 7, 161 CE, Marcus Aurelius acceded to the imperial purple and requested that the Roman Senate confer equal Augustan rank upon his adoptive brother, Lucius Aurelius Verus. This act established Rome's first formal collegial principate. While Marcus retained supreme pontifical precedence as Pontifex Maximus, both co-emperors wielded equal imperatorial authority and tribunician power, coordinating their fiscal, diplomatic, and military initiatives across the empire.

In late 161 CE, King Vologases IV of Parthia invaded the Roman client kingdom of Armenia, wiping out the Legio IX Hispana at Elegeia and defeating Roman regional garrisons in Syria. In response, Lucius Verus established a command headquarters at Antioch to oversee eastern operations from 162 to 166 CE, while imperial legates, notably Statius Priscus, Avidius Cassius, and Martius Verus, executed coordinated field counter-offensives. Roman forces captured and destroyed Artaxata in 163 CE, prompting the adoption of the victory title Armeniacus, which Verus assumed in 163 CE and Marcus accepted in 164 CE. Subsequent Roman drives deep into Mesopotamia led to the sack of Seleucia-on-the-Tigris and the capture of the royal Parthian capital at Ctesiphon. For these achievements, both co-emperors assumed the title Parthicus Maximus in mid-166 CE and celebrated a joint triumph in Rome in October of that year.

The eastern triumph was swiftly shadowed by internal and frontier crises. Returning legionaries transmitted the devastating Antonine Plague throughout the provinces, while northern Germanic and Sarmatian tribal confederations, including the Marcomanni and Quadi, breached the Danubian frontier. By the winter of 167/168 CE, the co-emperors prepared to march north on campaign. Struck at the mint of Rome during this tense interlude, this gold aureus issue proclaimed divine victory in the East as the imperial administration braced for protracted conflict along the Danube.

Selected Issues: Obverse Iconographic Composition

The obverse displays a right-facing portrait of Emperor Marcus Aurelius wearing the triumphal laurel wreath (corona triumphalis). The wreath ties fall naturally down the nape of his neck. Consistent with Antonine portraiture traditions, the emperor is depicted with thick, layered curls across his crown and temples, accompanied by a full, naturalistic beard extending along the jawline and chin. This iconography embodies the philosopher-emperor ideal popularized during his reign, visually communicating intellectual gravity, Hellenic cultural refinement, and Stoic composure.

At the truncation of the bust, die varieties exhibit distinct treatments of imperial dress. The primary standard variety exhibits a cloak (paludamentum) draped across the left shoulder, appearing as folds of fabric visible at the front and back of the neckline. A secondary variant depicts the emperor wearing a cuirass (lorica). The entire obverse portrait is enclosed within a continuous, finely struck border of raised beads.

Selected Issues: Obverse Epigraphy and Inscriptions

The obverse inscription is arranged clockwise along the perimeter of the coin, beginning at the lower left edge (approximately 7:00):

• Original Epigraphic Text: M ANTONINVS AVG ARM PARTH MAX
• Epigraphic Script: Latin monumental capitals (Capitalis Monumentalis)
• Expanded Reading: M[arcus] Antoninvs Avg[vstvs] Arm[eniacvs] Parth[icvs] Max[imvs]
• English Translation: Marcus Antoninus Augustus, Conqueror of Armenia, Greatest Conqueror of Parthia

The retention of the family name Antoninus reinforced institutional and genealogical continuity from his predecessor and adoptive father, Antoninus Pius. The military cognomina ex virtute (Armeniacus and Parthicus Maximus) explicitly highlighted Marcus's shared responsibility for eastern Roman victories, validating his collegial oversight alongside Lucius Verus.

Selected Issues: Reverse Iconographic Composition

The reverse depicts Victory (Victoria), the Roman divine personification of military success, advancing dynamically toward the left across an exergual ground line. She is garbed in a classical, high-girdled chiton and mantle, with the drapery folds billowing backward to suggest purposeful stride and momentum. Her large wings are spread upward and backward, rendered with finely articulated plumage.

Victory carries two traditional triumphal attributes: in her extended right hand, she raises a circular laurel wreath (corona triumphalis) forward, while in her left hand and crook of her arm, she cradles a long palm branch (palma) resting diagonally across her left shoulder. The iconographic composition is encircled by a border of raised beads.

Selected Issues: Reverse Epigraphy and Inscriptions

The reverse inscription begins at the lower left perimeter (approximately 7:30) and circles clockwise around the central motif:

• Original Epigraphic Text: TR P XXII IMP IIII COS III
• Epigraphic Script: Latin monumental capitals (Capitalis Monumentalis)
• Expanded Reading: Tr[ibvnicia] P[otestate] XXII, Imp[erator] IIII, Co[n]s[vl] III
• English Translation: Holding tribunician power for the 22nd time, acclaimed supreme commander for the 4th time, consul for the 3rd time

This string of offices and honors provides the chronological framework for dating the issue:

1. Tribunician Power (TR P XXII): Marcus Aurelius originally received the tribunicia potestas on December 1, 147 CE, under Antoninus Pius. Per standard imperial practice, subsequent renewals occurred annually on December 10. His 22nd annual term ran from December 10, 167 to December 9, 168 CE.
2. Imperatorial Acclamation (IMP IIII): Marcus assumed his fourth imperatorial acclamation in mid-166 CE following decisive victories in the Parthian War.
3. Consulship (COS III): Marcus entered his third and final ordinary consulship on January 1, 161 CE, retaining the designation COS III on his coinage for the remainder of his life.
4. Acclamation Transition (IMP V): Marcus was acclaimed Imperator for the fifth time (IMP V) during northern frontier operations in early 168 CE. Because this emission couples TR P XXII with IMP IIII, its production is securely anchored to the narrow window between December 10, 167 CE and the early months of 168 CE.

Typology and Documented Variants

The series was produced in gold at the official mint of Rome according to the reformed Neronian weight standard of 45 aurei to the Roman pound, struck at an average theoretical mass of approximately 7.27 to 7.30 grams with gold purity exceeding 98 percent. Engraving variations in this emission center on the treatment of the obverse bust:

• RIC III 180 / Calico 2000 / Cohen 894: Features a laureate head or bust of Marcus Aurelius right, with drapery gathered across the left shoulder (front and back). This corresponds to the standard catalogued type in BMCRE IV 457.
• RIC III 181 / Calico 2001: Features a laureate bust right, wearing a military cuirass.

Parallel reverse types bearing identical imperial titles were struck contemporaneously on base and silver denominations at Rome, such as silver denarii (RIC III 178 and 180 var.) and bronze sestertii (RIC III 952 and 954). However, these denominations utilized dedicated die sets, flan modules, and workshop pipelines distinct from the gold emission lines.

Scholarly Debates and Attribution Limitations

Scholarly classification and analysis of this issue involve several points of nuance:

1. Bust Drapery vs. Head Type: In Volume III of Roman Imperial Coinage, Harold Mattingly and Edward Sydenham catalogued RIC III 180 as a 'draped bust right.' In Coins of the Roman Empire in the British Museum (BMCRE IV), Mattingly noted that across several dies, the drapery is restricted to minor folds gathered over the left shoulder, causing certain modern auction and institutional entries to catalog identical dies alternately as a 'laureate head with drapery on shoulder' or a full 'draped bust.'

2. Portrait Classification: In his study of Antonine portrait types, Max Wegner organized Marcus Aurelius's imperial likenesses into four progressive categories. The portrait used on this emission belongs to Type III (the Accession or Philosopher Type, c. 161-169 CE), characterized by voluminous, drill-worked curls and a full, untrimmed philosopher's beard. This type is stylistically distinct from both his earlier Caesar types (Types I and II) and the later, haggard Danubian sole-reign portraiture (Type IV) developed after the death of Lucius Verus in 169 CE.

3. Chronological Terminus of IMP IIII: While the inception of TR P XXII is firmly fixed to December 10, 167 CE, the precise timing of the co-emperors' assumption of IMP V in 168 CE has prompted scholarly discussion. Mattingly placed the acclamation in the spring of 168 CE, coinciding with the imperial departure from Rome to the Danubian front, whereas other numismatists have placed it as early as February 168 CE. Regardless of the exact month, the emission of aurei bearing TR P XXII IMP IIII was discontinued early in the tribunician year upon receipt of the fifth acclamation.

References

1. Aureus (Coin) Portraying Emperor Marcus Aurelius (Accession 1922.4298). Art Institute of Chicago Collection Database
2. Cat. 23 Aureus Portraying Marcus Aurelius: Curatorial Entry. In Roman Art at the Art Institute of Chicago (2016)
3. Cat. 23 Aureus Portraying Marcus Aurelius: Technical Report. In Roman Art at the Art Institute of Chicago (2016)
4. Gold aureus of Marcus Aurelius (BM Reg. 1856,1101.70). British Museum Collection Database, published as BMCRE IV 457
5. OCRE record ric.3.m_aur.181. Online Coins of the Roman Empire (OCRE)
6. Coin - Aureus, Emperor Marcus Aurelius, 168 AD (Registration Nu 019233). Museums Victoria Collections
7. The Roman Imperial Coinage, Vol. III: Antoninus Pius to Commodus. pp. 227, nos. 180-181
8. Coins of the Roman Empire in the British Museum (BMCRE), Vol. IV: Antoninus Pius to Commodus. pp. cii-civ, cxx, 449, no. 457, pl. 62.13
9. The Roman Aurei: An Exhaustive Historical and Numismatic Catalog, Vol. I. p. 339, nos. 2000-2001
10. Description historique des monnaies frappees sous l'Empire romain, Vol. III. p. 95, no. 894
11. Die Herrscherbildnisse in antoninischer Zeit (Das romische Herrscherbild II.4). pp. 34-46