1 Uncia dot to the right

Ariminum (modern Rimini) was among the Latin colonies established on the Adriatic coast as Rome pushed into formerly Gallic territory — its founding in 268 BC coincides almost exactly with the likely opening of this issue. The colony required its own bronze coinage to function, and the distinctive dot placement to the right serves as the principal means of distinguishing Ariminum's output from the broader cast aes grave tradition shared across allied mints.

The series closes around 225 BC, the year of the Battle of Telamon, where Roman and allied forces crushed a Gallic invasion force. Whether the halt in production was administrative or circumstantial remains debated.