Abstract: A self-returning horizontal sign system mounts to an associated structure. The system sign includes an upper rail having front and rear, parallel, spaced apart tracks and a lower rail having front and rear, parallel, spaced apart tracks. A pair of panels extend between and span the upper and lower rails. Each panel has a carrier assembly mounted to an upper region thereof for cooperation with a respective front or rear track of the upper rail. The carrier assemblies have at least two rollers that are carried in the upper rail. The panels each move between an open position and a closed position. A closure formed as a pull box is associated each panel and includes a spool having a cable wrapped around it. The spool is rotatable to retract and extract the cable from about the spool. The closure includes a tension bias element operably connected to the spool to bias the spool to retract the cable.