This is the area that has me most concerned.
This looks more like glue than anything to me. Now since I am going off pictures alone please take this as an idea and not gospel. I would dip the coin in acetone. I know this is safe for other coins but not sure if it will be ok for cents. If anyone knows please say so.
If it is ok it will take the glue off and the mystery will be solved.
Outside of glue I am all out of ideas. Please remember in errors you should always assume you have nothing until you can prove otherwise. Once we exhaust all other possibilities we may come to the realization that you have something genuine!

Won't that be cool?
Michael