I got this coin from England and while I was updating my collection I couldn't find it in the catalogue at first. Then I noticed that the year on the coin is different from the year on the catalogue:
https://en.numista.com/catalogue/pieces3807.html
The coin was supposed to have been minted in 2006, but mine is 2004. I did some research but I found only information about the 2006 one.



Could it be a mint error or it is just a valueless false?
Thanks
Alex