Abstract: A sign display device consists of a substantially U-shaped bracket with arms that resiliently grip a bar member such as used to form a frame for mounting a poster or sign. Slots extend through the bracket and are sized to receive sign clips that are affixed to the back of a sign. Use of the sign display device permits attaching a secondary sign to a main sign or poster display, with the bracket concealed by the secondary sign and standing out from the surface of the main sign for increased or enhanced visual recognition.