How to Identify the Antoninianus of Numerian

Start with the obverse portrait. A genuine antoninianus of Numerian shows a male bust facing right wearing a radiate crown of pointed spikes rather than a laurel wreath. Read the encircling legend carefully: an imperial titulature built around NVMERIANVS, such as IMP NVMERIANVS AVG or IMP C M AVR NVMERIANVS AVG, is what confirms the ruler. The name is the single most reliable diagnostic, because the portrait style is shared by many rulers of the period.

Next examine the reverse. Expect either a Victory striding forward with a wreath and palm branch, or a single standing figure, a deity or personification, holding identifying attributes: Providentia with a wand and cornucopia, Sol raising a hand, Fortuna with a rudder, or Pax with an olive branch. The reverse legend names the type, so matching the figure's attributes to that legend is the key attribution step.

Check the exergue and fabric. Late radiates of this reign often carry a mint mark and officina letter in the exergue beneath the reverse figure, which can help pin the coin to a specific mint such as Rome, Ticinum, Lugdunum, Siscia, or one of the eastern mints. The metal is a brass or bronze alloy, sometimes with traces of original silvering; a brown, brassy, or patchily silvered surface is normal, while a bright white or heavy piece deserves scrutiny.

Measure the coin. Diameter should fall roughly in the 20-23 mm range with a weight near 3-4.5 grams. Coins far outside these figures, or with a suspiciously smooth, seamed, or bubbly surface, may be casts or modern reproductions.

Beware of look-alikes. Antoniniani of Numerian's father Carus and brother Carinus share the same radiate format, reverse types, and mint marks, so always confirm the obverse name before attributing. When authenticity or precise attribution matters, compare the exact obverse and reverse legends and the mint mark against a standard reference such as RIC rather than relying on the portrait alone.