>>1668983>the Romans knew they weren't as valuable, they needed the coins for trade and taxes anyways
The US had the same situation with hard times and Civil War tokens. These were different types of tokens issued by private producers because there weren't enough coins on the market to do business. They're also not counterfeits even though most of them resemble real money pretty closely. But their intention wasn't to create fakes for profit, and the public generally knew the copper tokens weren't real but used them anyways.
A similar situation existed in the US with trade tokens, the general shortage of real coins caused individual merchants to make their own coins and hand them out as change. Since they were usually only redeemable at the issuing merchant this guaranteed returning customers coming back to spend their tokens where they got them. This was made legal by the merchants' pricing structures- e.g. a saloon might sell 2 drinks for 5 cents and instead of giving back 2.5 real cents as change on one drink they'd give a token worth that much. Since the price was 5 cents whether a person drank one drink or two, change wasn't required by law, and the token wasn't being used as legal money. The saloon owners of the time regularly priced their drinks in multiples and were able to give out tokens for unused parts of the order, be they 2.5 cents or 12.5 cents or even the easier to replace 5 cent or 10 cent token.
Anyways, the simple fact that Rome covered so much territory and engaged in so much trade pretty much guaranteed that even the 'real' Roman coins were struck locally, not at some official mint. At least in the case of copper coins. Just like in the US, striking copper coins made very little profit for the state, so they didn't make nearly enough, and they didn't much mind if other people did it for them. In many cases in both the US and Rome, striking copper coins actually cost the state more than the coins were worth, so they didn't do it at all.