Postumus Antoninianus RIC V Postumus 287

Monetary Context and the Gallic Secession

The antoninianus designated as RIC V Postumus 287 was issued in AD 267 during the eighth year of the reign of Postumus, who had established the independent Gallic Empire (Imperium Galliarum) in AD 260. Following the capture of Emperor Valerian by the Sasanian Empire and the fragmentation of Roman frontier defenses, regional commanders in the Rhine provinces elevated Postumus to secure the western territories. Rather than dismantling the standard Roman administrative framework, Postumus preserved traditional civic and military institutions in Gaul, Britain, and Hispania. A cornerstone of this policy was the operation of an autonomous monetary system centered on the radiate double denarius, commonly termed the antoninianus. By AD 267, the financial pressures facing the Gallic Empire had intensified due to recurring border threats from Germanic confederacies and ongoing conflict with Emperor Gallienus. While the central Roman mint at Rome severely curtailed the silver alloy of its radiates down to negligible traces below five percent, Postumus managed to maintain a noticeably higher standard of billon for much of his reign. RIC V Postumus 287 represents this mature monetary phase: though declining in intrinsic silver content relative to his opening years, it remained substantially weightier and visibly superior in fabric to the contemporary animal radiates of Gallienus. Through issues like this consular type, Postumus projected stability and solvent state patronage to his legions along the Rhine frontier.

Production Standards and Mint Attribution

The emission of RIC V Postumus 287 is traditionally assigned to the primary northern mint of the Gallic Empire, Colonia Claudia Ara Agrippinensium (modern Cologne). Earlier numismatic frameworks, including parts of Percy Webb's arrangement in Roman Imperial Coinage Volume V, treated Lugdunum (Lyon) as the principal workshop for Postumus. However, subsequent twentieth-century hoard studies and typological analyses, pioneered by Georg Elmer and refined in British and continental hoard publications, demonstrated that the primary striking center for this sequence was located at Cologne, where Postumus maintained his imperial headquarters and treasury. Production at Cologne exhibited disciplined die preparation, marked by expressive portraiture and consistent flan fabrication. The antoninianus was struck on cast billon flans prepared from silver-copper alloys that typically ranged between fifteen and twenty percent fine silver, though gradual metallurgical degradation occurred toward the end of his rule. Average weights for this consular issue fluctuate roughly between 2.8 and 3.5 grams with typical diameters spanning 19 to 22 millimeters, in line with the general weight trends of fifth-phase Gallic radiates. Die-alignment practices at Cologne were typically semi-regular, favoring upright or inverted orientations.

Obverse Iconography and Imperial Representation

The obverse of RIC V Postumus 287 features a right-facing bust of Postumus wearing the radiate crown, the numismatic hallmark denoting the double-denarius denomination since its introduction under Caracalla in AD 215. The imperial portrait is rendered in the characteristic Cologne style, notable for its mature, heavy facial structure, prominent hooked nose, and intricately engraved, spade-shaped beard that conveys stern gravitas. Two recognized drapery treatments occur on the obverse dies of this type. In one variety, the emperor appears with a simple draped bust, showing the folds of the paludamentum over the shoulders. In another attested variety, the bust is draped and cuirassed, revealing plate or scale armor beneath the mantle. These bust treatments were produced concurrently by active workshops at Cologne. The radiate crown is executed with broad, triangular rays projecting crisply across the upper perimeter, projecting the traditional solar association of imperial victory and vigilance.

Reverse Design and Consular Symbolism

The reverse of the type depicts the Roman goddess Victory (Victoria), winged and draped, striding or standing toward the right. In her outstretched right hand, she holds a circular laurel wreath, the classic emblem of triumphant military achievement. In her left hand, held across or resting upon her left shoulder, she carries a long palm frond, symbolizing enduring success and martial glory. Her drapery is rendered with kinetic folds swept backward to signify forward motion or energetic stance. This imagery operates in tandem with the chronological reverse inscription to link Postumus's fourth consulship directly with divinely sanctioned success. In third-century Roman imperial coinage, consular issues often portrayed the emperor himself in ceremonial regalia or driving a triumphal quadriga. By selecting Victory instead, the die designers underscored that Postumus's civil magistracy was won and sustained by active military vigilance, reassuring both soldiers and civic populations across the western provinces.

Epigraphy and Legend Structure

The obverse inscription reads continuously along the perimeter: IMP C POSTVMVS P F AVG. This standard abbreviated formula represents Imperator Caesar Postumus Pius Felix Augustus. The title Imperator asserts his status as supreme military commander, while Caesar and Augustus claim full constitutional parity with the rulers of the central empire. The epithets Pius (dutiful or pious) and Felix (fortunate or blessed) echo third-century conventions of divine favor and civic loyalty, firmly casting the Gallic ruler in the orthodox mold of traditional Roman princeps. The reverse inscription is exceptionally succinct: COS IIII. This legend abbreviates Consul Quartum, designating the fourth time Postumus assumed the ordinary consulship. The exclusion of broader imperial titles or protective invocations on the reverse focuses entire attention on the constitutional magistracy. Letterforms at the Cologne mint are cleanly cut, with sharp serifs and consistent vertical alignment, distinguishing this emission from the increasingly degraded lettering of later Gallic rulers.

Typological Classification and Chronological Placement

In the standard reference catalogue The Roman Imperial Coinage (Volume V, Part II), Percy Webb catalogued this specific issue under number 287. Georg Elmer's 1941 foundational corpus placed the fourth consulship issues in his chronological series of AD 267, an assignment upheld by modern scholars including Pierre Bastien and the editors of the Online Coins of the Roman Empire (OCRE). Postumus celebrated his fourth consulship beginning on January 1, AD 267, providing a secure historical anchor for the striking of RIC V Postumus 287 within that calendar year. Within the broader series of Postumus's consular coinages, RIC V Postumus 287 belongs to an interconnected family of types celebrating his fourth consulship. Companion issues feature alternate reverses, such as the emperor standing in a toga holding a globe and scepter, or Victory presenting a wreath directly to the seated ruler. RIC V Postumus 287 is specifically characterized by the standalone standing Victory right, paired with the concise reverse legend COS IIII without field marks or workshop signatures.

Circulation, Hoard Evidence, and Monetary Impact

RIC V Postumus 287 circulated widely throughout the western territories under Gallic imperial jurisdiction, encompassing modern France, western Germany, Belgium, and Britain. Massive numismatic assemblages buried during the political upheavals of the late 260s and 270s AD demonstrate the heavy presence of this issue in everyday transactions and army paychests. Notably, large-scale British deposits, such as the Cunetio Hoard in Wiltshire and the Normanby Hoard in Lincolnshire, contained multiple examples of this specific reverse type, demonstrating that Cologne-struck radiates penetrated deep into provincial supply networks. Because the billon antoniniani of Postumus offered superior weight and intrinsic silver content relative to the debased issues of Claudius Gothicus and Quintillus, as well as the later Gallic emissions of Victorinus and the Tetrici, these coins were frequently hoarded and selectively extracted from circulation. Nevertheless, worn and clipped specimens found in commercial river deposits and urban excavations attest that RIC V Postumus 287 remained in active circulation for years after Postumus's death in AD 269, until the monetary reform of Aurelian in AD 274 brought an end to the Gallic currency pool.

References

1. Le Monnayage de Bronze de Postume. Wetteren, Editions Numismatique Romaine, 1967
2. The Cunetio Treasure: Roman Coinage of the Third Century AD. British Museum Publications, London, 1983
3. Die Münzprägung der gallischen Kaiser in Köln, Trier und Mailand. Bonner Jahrbücher 146 (1941), pp. 1-106
4. Online Coins of the Roman Empire: RIC V Postumus 287. ric.5.post.287
5. The Roman Imperial Coinage, Volume V, Part II. p. 360, no. 287