I love seeing pics like that of old services and installs. I have recently been re-wiring a house in the UK with some very old wiring. Similar to that wooden channelling in your pic, except the whole house was wired with it, even under the floors and loft space. I guess it was our equivalent to K&T. The house in question was wired around 1910 for a D.C. generator supply, before getting connected to the mains around 1930. All the wiring has been in use until now as I am taking it out. It has been a wonderful glimpse of "how it used to be done". Talking of fuseboards with glass doors - I have one of those in my home, from a 1926 installation. I now use it for a 12volt D.C. from my water-powered supply.
