I wonder what the withstand rating is on these?

I’ve known about these switches in this old house for at least 15 years but never took any pics. I was over there today and thought I would share to see if they are common in other parts of the country. Out east maybe? I’ve only seen these switches in this one house here in Indiana. The house was built in 1931. I assume these are original to the building but don’t know for sure.

Yes, they are manufactured by the same company you’re thinking of. READ MORE.