You are absolutely right! I was copying the faceplate specs, and an additional zero somehow found its way in... haha, I'll just edit it now. Thanks!
But here's some measures. I am not using any metrology techniques here, I only nulled the leads as I do not (yet) have proper Kelvin clips (Frankie alas does not ship to Italy, and I had some other expenses in the meantime. I still lust after a good Siglent SDS 2000X Plus).
In any case, I am amazed at the quality of the switches, they are real smooth and have perfect contact! after all these years and abuse at the hands of bored teenagers, the box still works great, and for a hobbyist as myself it is more than enough. Sure, it only has five decades, but hey...
too bad the posts do not accept banana plugs, but they have channels etched that allow good contact with classic probes.
Set at 1 KOhm
all knobs set to 1
Everything set to zero, leads nulled, resistance of the box
ETA: why the forum software does not place the images where I want them to? I followed all the instructions but it just shows a line of text instead of the pics