I believe it did looked something like photo below, there is also a second switch with a small plastic knob. both pull style switches were mounted to a bracket with a thumb screw, allowing the switch to be mounted under the dash. The Ford script road lights were put into service around Feb of 38. prior to that was the Unity S-3 with the two piece brackets as Don pictured above. Light body is marked "Unity Mfg, Co.
Chicago Ill.
USA"