I find Rutter in HNItaly convincing for his suggestion of Syracusan influence here. I also give Crawford’s views below. I just wonder if Arpi isn’t the inspiration or even the mint location for RRC 15/1. At very least it shows earlier reception of the Syracusan types among Rome’s allies.
This is what Sorda says that Crawford dismisses:
The follow proposes a radical redating that ignores the hoard evidence and that of the weight standard.