Vintage Osram Autolampen Tester VW Porsche Dealer

The Vintage Osram Autolampen Bulb Tester device is made in Germany and about 50 years old. It works with 220V and the plug is missing. I did not test it, because there is no plug and I was afraid. You can put e.g. a bilux headlight bulb on the aluminum and then you press the button and will see if the bulb works. Of course only, if the Osram Autolampen device is working. It is in good condition, about 20x20x20cm, weight is 1400g and Made in Germany. The bulb tester was used in vintage Porsche and VW dealer garages.