Here I found this interesting 1990 10 franc. Question is; fake or a mint error? The coin is the correct size at 23mm but 0.183 of a gram overweight. Also missing engravers mark under the R of RF. Also note weak strike. And the central disc has a rounded edge. What do you think?
what country is it from ? looks like it had a lot of damage. I wonder if someone popped out the middle section and soldered it back in. looks like France https://en.numista.com/catalogue/pieces9.html
I believe I read somewhere that these types of coins were counterfeited. Mostly British Bi-metal coins.