| Province | Bithynia-Pontus |
| City | Nicomedia |
| Region | Bithynia |
| Reign | Severus Alexander |
| Obverse inscription | ΙΟΥΛΙΑ ΜΑΜΑΙΑ ΑΥΓ |
| Obverse design | draped bust of Julia Mamaea, right |
| Reverse inscription | ΝΙΚΟΜΗΔΕΩΝ ΔΙϹ ΝΕΩΚ |
| Reverse design | aquila between two military standards, topped by wreaths |
Coin no. 3 of RPC VI, 3428 (temporary)
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| URI | https://rpc.ashmus.ox.ac.uk/coin/404648 |
| Reference | Imperial Coins and Artifacts |
| Diameter | 20 |
| Weight | |
| Axis | |
| Note |