On the back of the 1 dollor bill, on the outside of the boarder there is a second boarder that looks like the front of the bill

lisawall-This is called a "paper money ERROR"It is called a "partial offset-front to back .If you could post a picture on here,so that others could see it also and I could see it and give you more of what I think you are wanting: Have a Merry Christmas and a Happy New Year: F.B.E.