Segregation Signs (Jim Crow Signs) replicas on signs. The standard signs are made of metal and have two holes that can be used for mounting on a wall. Size-13.5 inch x 4 inch. The Jim Crow laws were state and local laws in the United States enacted between 1876 and 1965. They mandated de jure segregation in all public facilities, with a supposedly "separate but equal" status for black Americans. In reality, this led to treatment and accommodations that were usually inferior to those provided for white Americans, systematizing a number of economic, educational and social disadvantages.