Went back to my honey hole for a few hrs and dug this. From what I can see it looks like a shield nickel and it is old. I have it soaking in olive oil. I got a 12-12 - 12-13 at 6 inches thinking a buffalo nickel. It was pretty well crusted looked like a nickel to me. I rubbed it some and noticed it was different . So to avoid messing it up I washed it with warm water now soaking in olive oil. What would be a good way to clean this coin ? Sorry for the bad pics cell phone camera.