Bjarney,
You know you may be right, it has been a long time since I saw that "dimmer" installed. I guess it was when I first started in my own business around 1984, before that I worked for an electrical contractor. I only started to save the old parts when I was in my own business. One of the jobs I worked on had a beautiful all brass, fuse box, with knife switches to disconnect branch circuits from the brass busbar, and a large brass douple pole knife switch that was used for the main disconnect. I wish I could have gotten pictures of that.
Caper
