Roman coin #4

Hello, here is the last coin for now:

A lot bigger than all the other ones, unfortunately very worn and broken too

Obverse: Late roman head, no lettering legible

Reverse: Definitely something there, maybe a fallen horseman?

5,43g

22mm in diameter

Constantius II follis, reverse FEL TEMP REPARATIO with fallen horseman.

Fortunately I recognized the fallen horseman design.

Finding the mint will be another story, it's visible but unreadable.