During the Crisis of the Third Century of the Roman Empire, was coinage in the border provinces between Roman succession domains interchangeable despite the clashing iconography and potential differences in valuable metal content from debasement?

by Deeceeweewee

Apologies if a similar question has been asked before.

I'm interested in whether there was interchangeability between the coinage of the Roman successor states before the reunification by Aurelian. I imagine in border provinces such as Bithynia and Narbonensis there might have been some exchange of currencies in the private sector given their proximity. This brings to question if there were any restrictions on using currency bearing the image of rival powers within these states.

Deeceeweewee

On the subject of debasement; if there was an exchange of coinage would this have allowed for enterprising individuals to swap out currency which were supposedly the same value for coins with higher amounts of precious metal content? I'm aware during the crisis the core Empire continued to reduce the silver content however I can't find sources for the Gallic and Palmyrene equivalents.