Antoninianus of Numerian

The antoninianus of Numerian is a base-metal Roman coin struck during the brief reign of Marcus Aurelius Numerius Numerianus (Numerian), who ruled as co-emperor from 283 to 284 AD alongside his father Carus and brother Carinus. By this late date the antoninianus was no longer a silver coin but a brass or bronze-alloy piece, often given a thin silver wash that has usually worn away, and it is identified by the emperor's radiate (spiked) crown.

The example shown here follows the standard pattern of the reign: a radiate bust of Numerian facing right on the obverse, paired with a Victory or a standing deity on the reverse. Coins of this type were struck across several imperial mints in large numbers to pay the army and were the everyday high-denomination coin of the early 280s.

Numerian was the younger son of the emperor Carus, who came to power in 282 AD. When Carus campaigned against the Sasanian Persians, Numerian accompanied him and was raised to the rank of Augustus, while his elder brother Carinus governed the West. After Carus died in 283 AD, Numerian and Carinus ruled jointly, and Numerian's coinage was issued to fund the return of the eastern army.

Numerian's reign was short and ended mysteriously. On the march back from Persia in 284 AD he died, reportedly of illness, and the soldiers subsequently acclaimed Diocletian as emperor. Because his sole and joint reigns together lasted only about two years, Numerian's coins were struck within a narrow window, though the scale of military spending meant they were nonetheless produced in considerable quantity before the coinage reforms that followed under Diocletian.

Look first for the radiate crown of pointed spikes on the obverse, the defining feature of the antoninianus. The portrait is a male bust facing right, usually draped and cuirassed, surrounded by a Latin legend built around the name NVMERIANVS, commonly in forms such as IMP NVMERIANVS AVG or IMP C M AVR NVMERIANVS AVG.

The reverse typically shows a Victory advancing with a wreath and palm, or a single standing deity or personification such as Providentia, Sol, Fortuna, Pax, or the Genius of the army, named in the surrounding legend. Many coins carry a mint mark and officina letter in the exergue below the figure. Typical pieces measure roughly 20-23 mm across and weigh about 3-4.5 grams, with a brassy or brown surface rather than bright silver.

The antoninianus of Numerian is an affordable entry point into third-century Roman coinage. Ordinary circulated examples with a legible portrait and reverse trade at modest prices, reflecting the fact that these base-metal radiates survive in quantity.

Value is driven mainly by condition, strike, and eye appeal rather than rarity. Coins that retain part of their original silvering, show a sharp portrait and full legends, or carry a clear and desirable reverse type command a premium over worn, corroded, or weakly struck pieces. Because Numerian's reign was brief, well-preserved specimens can be somewhat harder to find than those of longer-reigning contemporaries.