The lamp panel is only made up of a few parts. The most time-consuming part is the metal sheet into which the light bulbs are screwed. For this, I needed six special tools, e.g., an edge cutter, a drawing mandrel for the light bulb sockets and a special tap for E10 electric threads.
Here you can see how the drawing works:
The sheets were nickel plated and screwed onto the inside panels. The letters on ther information signs were engraved and filled in with red color; after that the signs were riveted onto the panel. The cable clips are still missing. They will be mounted after soldering the cable harnesses.