vintage German car trouble light 60ies

Vintage car trouble light made in Germany in the 60ies and in good condition. Tested with 6V and working. I did not check if the bulb inside is 6V or 12V but it can be used with both sorts of bulbs. The lamp is 16 cm length, the bulb cover lens is stamped with "GERMANY, MAX 18W". The yellow cable is the first and it was never unpacked. The plug fits in 1 cm diameter old style power sockets. This is good quality from Germany. The last picture shows the hand lamp in an old German part catalog.