I placed a bunch of coins in the coinstar machine at Walmart and this dime was rejected so I placed it through there again and it was rejected again so I decided to take a look at it and realize it was a 1966 Roosevelt dime that is missing the copper layer but the machine kept rejecting it as if it were a Canadian coin I did attempt to Google this coin several times to try to find it or what it is and I cannot find anything close so I'm auctioning this coin to the highest bidder maybe someone else knows what it is I am assuming it is a error of some kind perhaps the wrong planet please leave comment if you know what this is thank you oh and before I forget this coin weighs 2.5 g just for those that want to know it's weight