This is the closest coin I could find to it but it has a smaller diameter and about 1/3 thickness. slight image can be seen both sides but one side is dirty so hard to see in pic. Most all Mexican coins of this diameter are quite thick and this is thin enough I dont believe you would be able to see both sides if you wore down the coin to this thickness. So what do I have here?
i dont know if I have ever seen a coin wear down to less than 1/3 its original size. It is Mexico though, who knows.