I can not really see the markings on back. I did not want to try and clean it up because I wasnt sure if I'd ruin it. Any suggestions on how to clean it up. I believe it is copper.
I did a quick search on it and I couldn't find a picture of it. It might be a local medal for a sporting event.
you could do a light cleaning with heated hydrogen peroxide.
warm the HP to boiling in your microwave, remove from the MW and drop it in the solution. it will bubble, when it cools off, remove the medal and rinse it off