This is one of my favorite bank notes in my collection. It is a 1954 Canadian $1 bill.
If you look closely at the queen’s hair behind her left ear there is what appears to be the face of the devil.
Whether this was intentional or not on the part of the artist is still not known but they changed the design after people started complaining that they were seeing the face of satan on their money. Political statement? Perhaps.. thoughts anyone?