WSK 125 1985. It fits perfectly under the rear lamp from Charta, but with a little modification it also fits a lamp from later years. However, a diagram like the one in the second photo would be useful.
works flawlessly, the key works great , fits perfectly, pins well marked which makes it easy to install. the only thing that can be improved is the thread for the mounting screw, according to the old ignition is too short so you need to put a washer.
The ignition switch very refined I put it on and everything works. There was no problem with anything either with the connection or the operation of the ignition switch