I'm not sure if this object is from a plane or not, but hope that someone might help me identify what it is. This was found in the woods about 3" below the surface. It is 1 1/4" by 1 1/4", probably Nickel Steel, hole in the middle is approximately 1/4" or 7 mm, some bluing in the metal, it is cut from a metal lathe and made from one piece of metal (no welds). Your help is most appreciated.