| Issuer | Roman Empire (27 BC - 395 AD) |
| Year | 290 |
| Type | Standard circulation coin |
| Value | Antoninianus (1) |
| Currency | Antoninianus, Reform of Caracalla (AD 215 – 301) |
| Composition | Silver |
| Weight | |
| Dimensions | |
| Thickness | |
| Shape and Technique | Round (irregular) Hammered |
| Orientation | |
| Engraver(s) | |
| In circulation to | |
| Reference(s) | RIC V.2#331C, OCRE#ric.5.dio.331 |
| Obverse description | Bust of Diocletian, radiate, draped, cuirassed, right. |
| Obverse script | Latin |
| Obverse lettering | IMP C C
VAL DIOCLETIANVS P F AVG (Translation: Imperator, Caesar, Caius Valerius Diocletianus Pius Felix Augustus. Supreme commander (Imperator), Caesar, Gaius Valerius Diocletian, the pious, the fortunate, emperor (Augustus).) |
| Reverse description | Victory, winged, draped, walking right, holding palm in right hand and presenting wreath to Diocletian, standing left, holding globe and sceptre. |
| Reverse script | Latin |
| Reverse lettering | IOVI CONSERVATORI AVGG
TR//XXI(palm branch right) (Translation: Iovi Conservatori Duorum Augustorum. To Jupiter, the protector of the two emperors (Augusti).) |
| Edge | |
| Mint | |
| Mintage | ND (290) - `TR` in left field; `XXI(palm branch right)` in exergue; - |
| Catalog ID | 4644944110 |
| Comments |
