Philip the Arab Silver Antoninianus, RIC IV Philip I 3

Monetary Context and the Third-Century Antoninianus

By the reign of Philip I (AD 244-249), the radiate double denarius, conventionally termed the antoninianus, had become the workhorse of the Roman imperial silver currency. Introduced under Caracalla in AD 215, temporarily suspended under Severus Alexander, and revived on a massive scale by Gordian III in AD 238, the antoninianus had effectively displaced the traditional denarius as the primary circulating coin for imperial taxation, military pay, and state disbursements. The denomination was tariffed at two denarii, despite containing substantially less silver than two physical denarii, creating an overvalued, fiduciary tariffing structure that was profitable for the imperial fiscus. During Philip's reign, the metallurgical composition of the antoninianus continued the gradual downward trajectory characteristic of the mid-third-century crisis. Assays of Rome mint issues from AD 244 through 246 reveal silver purities hovering around 40 to 45 percent, with base copper making up the remainder of the alloy. In this inflationary monetary landscape, standard state payments required heavy, continuous coin production, ensuring that issues carrying contemporary regnal dates like RIC IV Philip I 3 entered commerce in substantial volumes alongside earlier Severan and Gordianic silver.

Production Standards and the Rome Mint

RIC IV Philip I 3 was struck exclusively at the imperial mint in the city of Rome. During Philip's reign, the Rome mint was organized into distinct officinae (workshops), typically estimated at six operational units for silver production. Although officina marks in the field or exergue did not become standard practice at Rome until late in Philip's reign, internal stylistic groupings and shared reverse dies demonstrate an efficient, highly compartmentalized production system. Coin blanks were cast in spherical molds or cut from poured strips, then struck by hand between engraved iron or bronze dies. Production tolerances for mid-third-century antoniniani permitted considerable weight variation, with individual specimens typically ranging between 3.2 and 4.8 grams, clustering around an intended mean of roughly 4.0 grams. The diameter generally measured between 21 and 23 millimeters. Die axes were predominantly aligned close to 12 o'clock or 6 o'clock, reflecting the regularized mechanical habits of Rome's experienced mint staff.

Obverse Design and Portraiture

The obverse of RIC IV Philip I 3 presents a right-facing portrait bust of Philip the Arab. He is portrayed with the distinctive radiate crown, the numismatic indicator that signified the double denomination against the laureate crown of the standard denarius. The bust is fully draped and cuirassed, visible at the truncation of the neck and across the shoulder, conveying Philip's dual authority as civil magistrate and military commander-in-chief. Philip's portraiture on this issue exemplifies the mature imperial verism that characterized Rome's third-century die engravers. He is rendered with a heavy jaw, closely cropped hair and beard depicted via delicate peck-marks, a firm brow, and deep facial folds around the nose and mouth. This portrait style broke with the softer, idealized images of the adolescent Gordian III, projecting gravitas, military readiness, and stern administrative resolve in keeping with traditional Roman soldier-emperor iconography.

Reverse Iconography of Felicitas

The reverse of RIC IV Philip I 3 features the draped personification of Felicitas standing turned toward the left. In her right hand she supports a tall caduceus, an ancient emblem of peace, reconciliation, and mercantile prosperity. In her left arm she cradles a cornucopiae, the horn of plenty overflowing with agricultural abundance. In imperial ideology, Felicitas embodied the felicitas temporum, or the good fortune of the age, which the emperor's successful governance was believed to guarantee for the Roman world. Her appearance alongside a strictly dated tribunician formula served a specific propagandistic function in AD 246. Following the settlement of affairs on the eastern frontier and ongoing campaigns along the Danube, the imagery reassured both soldiers and civilians that the Roman state enjoyed divine peace, economic security, and continued stability under Philip's guiding hand.

Epigraphy and Titulature

The inscriptions on RIC IV Philip I 3 follow standard Roman epigraphic conventions with abbreviated imperial titles. The obverse legend reads IMP M IVL PHILIPPVS AVG, expanding to Imperator Marcus Iulius Philippus Augustus. This legend identifies the emperor by his tria nomina and claims supreme military command (Imperator) alongside the supreme august title (Augustus). The reverse legend reads P M TR P III COS P P, which abbreviates Pontifex Maximus, Tribunicia Potestate Tertium, Consul, Pater Patriae. This concise formula captures four pillar offices of the imperial constitution: high priest (Pontifex Maximus), holder of the tribunician power for the third time (Tribunicia Potestate III), consul (Consul), and father of the fatherland (Pater Patriae). The legend is struck with square, deeply cut capital letters standard for the Rome mint, though minor variations in letter spacing and truncation occur across different die sets.

Typology and Chronological Placement

Within the typology established in The Roman Imperial Coinage (RIC), this type is catalogued as RIC IV Philip I 3. The precise designation P M TR P III COS P P firmly places the issue in AD 246. Philip seized power in the East in early AD 244 (his first tribunician power, TR P) and took his first ordinary consulship in AD 245 (COS). Scholars debate whether the tribunician count renewed on the anniversary of his accession in early spring or followed the traditional senatorial renewal on December 10 or January 1. Nevertheless, TR P III securely designates AD 246, prior to his second consulship (COS II) celebrated on January 1, AD 247. RIC IV Philip I 3 forms part of a dated series produced by Rome's workshops alongside issues showing other allegorical figures such as Pax and Virtus. While undated issues celebrated virtues in generic terms, this dated type recorded the successful completion of Philip's second full year of rule.

Circulation, Hoard Evidence, and Survival

Like most silver antoniniani of the mid-240s AD, coins of the RIC IV Philip I 3 type circulated widely across the European, Danubian, and Mediterranean provinces of the Roman Empire. Major coin hoards recorded from Britain, Gaul, Italy, and the Balkan frontier, such as the Dorchester hoard and numerous continental deposits, regularly contain dated issues of Philip's third tribunician year. The high volume of antoniniani struck at Rome ensured widespread penetration into military payment channels, which rapidly dispersed the coins into regional markets. Because mid-third-century currency suffered rapid debasement under Decius, Trebonianus Gallus, and especially Valerian and Gallienus in the AD 250s, the relatively better silver of Philip's issues was frequently hoarded and withdrawn from daily circulation before severe degradation set in. Consequently, surviving specimens of RIC IV Philip I 3 are relatively numerous today, showing varying degrees of wear from brief to moderate commercial circulation.

References

1. Coin Hoards and Hoarding in the Roman Empire. pp. 112-135
2. Coins of the Roman Empire. pp. 95-102
3. The Roman Imperial Coinage, Vol. IV, Part III: Gordian III - Uranius Antoninus. p. 68, no. 3
4. Online Coins of the Roman Empire: RIC IV Philip I 3. ric.4.ph_i.3