My butcher found this in the backstraps of my buck. He said it looked to be an injury from at least a year ago the way the meat had grown around it. The hide had a 3 inch circle of hair missing above spine mid body. Nobody I showed it to can figure out what it could possibly be. It has a #30 stamped on 1 end with a small hole in the other end. Sorry for fuzzy pics I can't seem to focus any better.