ivory 12V switch with red control light

Ivory pull switch with red control light for 12 volt in good used condition. The 2 position switch is without damages but a bit dirty. The ivory knob has a small red light ON/OFF indicator in the middle. I just changed the small bulb at the rear and put 12V on 56a and 31 and the small bulb is working and the red light at the knob lights up then. I think the small bulb in the switch is like e.g. the small light bulb in a speedometer. So when e.g. headlight is on, the small bulb in the switch goes on “as the small light bulb in the speedometer”. The switch has 5 screw terminal connectors and it is is marked with “12V”. The knob diameter is 2 cm and the total length of the light switch is 9 cm. Made in Germany.