Got pictures? Nickels have a tendency to show a copper appearance when they've suffered environmental damage. Nickels that have been dug up out of the ground will especially show this tendency. A true "copper" nickel would be one that was struck on a wrong planchet.
Hi, welcome to the forum. Your photos are evidently on your AOL account, so we can't see them. You can try adding photos by using the "picture frame " icon at the top of the "quick reply box". ( 3rd from right). Or posting the photos on a public view site such as photobucket.com and using the url they give for each one. The "Go advanced " button at the end of the "quick reply" box gives more storage and handling possibilities for listing on this site. Jim
Could see the photos, but the one of the edge shows it to be about normal nickel thickness which would not be the case if it were struck on a cent planchet. Balance a ruler over a pencil and see if putting this coin and a "normal" nickel on it teeter-totter wise will balance. I think it is just discoloration.