I see most all saying counterfeit which is a real possibility, HOWEVER you never know, It would be a mis-struck planchet. YOU NEVER know, I encourage adding some pics, checking other coins of similar size, and if you have a local coin shop there is no harm in checking in and asking, most coin shop owners or employees love looking at coins and would do this free of charge. If if is enough of difference and looks stamped like it should be. I know this isnt much of help but I wanted to throw my "2 cents" (pun-intended). Have a great day and hope it is a error coin if it did happen to be what I stated about if confirmed and authenticated it would be valuable. Have a great day.