Paul,
Good pictures!. [Linked Image]
I remember my Grandparents had a phone exactly like this one in thier house.
Telecom NZ used to buy phones from BT if I'm right at all.
Although the numbers on the dial were around the other way (1-0).
Them wires from the dial unit to the base unit look like you could run an iron through them. [Linked Image]
You don't get circuit diagrams like that anymore with gear.
BTW, Paul, what function did the Induction coil serve?.
Arend,
That may be rubber tape that you are looking at there, it's still used on some iron flexes here as cushioning under the cord grip of the appliance.
As I remember Paul, your telephone number was written on a small disc of paper that fitted under a plastic disc in the centre of the dial.
These phones are pretty rare here now, as being made of alabaster (like bake-lite) they often didn't survive being dropped onto hard surfaces.
Could be fun fitting a BT connector to the end of that braided flex. [Linked Image]