I have a 198- something dime with a smooth copper rim to it. You can't read the last digit in the date. I have included some pictures. I have had this for years but I always wondered how it ended up this way.
@John Wiebel This looks like a dryer coin to me. If it had been "spooned", all of the devices would still be fairly sharp, but this coin has heat damage from extended time in a dryer. Chris
The Cool thing is @paddyman98 has been spooning that same coin for years and years now and I have not seen a ring!