Elektrisk Bureau Norway. Magneto wall from 1898?

[dsk]

I tried to make the diagram according to the really old standard.

[dsk]

I have just made better contrast on the original circuit, added text in English (I hope) and Norwegian, made asimple explanation on how the hook switch changes between the ringer (on hook functions) and the voice function.  And the last is how I would have scetched up the circuit diagram.