Vintage Wach-o-Maat HALT Auto Alarm System

Auto Alarm system WACH-O-MAAT in good condition. The system is complete with switch and mount screws. It looks like that it was mounted very short time. It comes with box and German instructions. It works with 6V and 12V and it is about 12x12x12 cm. The alarm system was made in Germany about 1960. The function is very simple. Inside is a pendulum and as soon as the car strongly wobbles the alarm system will switch on the horns. So you can just hit the bumpers a bit and the horn will go on and off and you are a show winner.