The new bill’s security features include a blue 3-D Security Ribbon on the front of the note that contains images of bells and 100s, which move and change from one to the other as you tilt the note, according to joint release from the agencies.
Another security feature is the “Bell in the Inkwell” image that changes color from copper to green when the note is tilted, an effect that makes it appear and disappear within the inkwell.