There is a key to lock it closed, and the same key will lock it either on or off. In keeping with a Victorian Bell/Butler Board but not near it in the house.
I guess it must be some kind of isolator switch, but I know nothing of its history.
There is a key to lock it closed, and the same key will lock it either on or off. In keeping with a Victorian Bell/Butler Board but not near it in the house.
I guess it must be some kind of isolator switch, but I know nothing of its history.
Guessing by the size of the wires this was meant to switch Mains power and was set u to cut/connect both legs at the same time. Since you mentioned a butler call board, it could have been used like this.![](https://lemmy.ml/pictrs/image/9041e0e7-1bfa-4043-802c-71da6e08b714.png)