| Province | Asia |
| Subprovince | Conventus of Sardis |
| City | Philadelphia |
| Region | Lydia |
| Reign | Caligula |
| Obverse inscription | ΓΑΙΟϹ ΚΑΙϹΑΡ |
| Obverse design | bare head of Caligula, right; to right, lituus |
| Reverse inscription | ΦΙΛΑΔΕΛΦΕΩΝ ΑΝΤΙΟΧΟϹ |
| Reverse design | winged thunderbolt |
Coin no. 1 of RPC I, 3029A
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| URI | https://rpc.ashmus.ox.ac.uk/coin/318602 |
| Reference | Bankhaus Aufhäuser 9, 7–9 Oct. 1992, lot 279 |
| Diameter | 13 |
| Weight | 3.54 |
| Axis | |
| Note | |
| Addition | Additional coin (post publication) |