I have searched high and low online over the last four years for these light switches.
And I've had no success. My hope is that by putting up a few pictures, somebody out there there will find these and comment on them. As near as I can tell, these brass Hubbell light switches are original to the house. Harvey Hubbell designed these switches in the 1920's and was granted a patent around 1926.
I'm a little puzzled about the chronology though. Our house was built in 1921, so there is a chance that these switches were installed a few years after the house was finished. What I'd really like to do is get my hands on a Hubbell catalog from the 1920's in hopes of finding the first year these switches were sold.
When we bought our house, there were still about 10 functional in the house. The rest had been replaced by more modern toggle switches. When the house was re-wired in 2008, our electrician took out the remaining and replaced them with modern toggles. When he was done, I put back the functional ones in the public spaces of the house - the front entry, the living room and the dining room.
The problem is that the switches do break. They have one flaw in the design where metal fatigue causes a break after 90+ years. Two weeks ago, I lost the three way switch in the living room and now it's been replaced by a brown plastic toggle switch. It looks fine, but the brass ones look so much better. So I've decided to see if I can find replacements, or replacement parts.
Occasionally, unusual stuff shows up on E-bay, so that's probably my best bet for now. I did find these, as modern replacements, but they are still not quite the same. And using these are prohibitively expensive.
Here is a picture of the light switch outside of the wall. You can see that there is no visible screw or fastener for the plate.
The plate comes off by untwisting the round beveled ring around the switch. This screws onto the main switch and holds the plate in place.
The switch is screwed into an electrical box, similar to a modern switch. One difference though is the size of the switch. It's gargantuan compared to a modern switch. Also the wires are attached to screws on the front of the switch, so they have to be snaked around the switch to the front. One unfortunate side effect of all this is that there are live wires that are uncomfortably close to the brass metal plate that you touch when you turn on the light. When I installed the switches, I grounded the switch, to help with any stray current, but originally, they would not have been grounded.
Here is a picture of the internal switch. This is a three way switch.
And this is the switch itself. It seems rather clunky. The switch is a pivot point and there is a spring on the back half of the pivot. The switch offers resistance and a very loud "click" when the switch is thrown. As the bottom half of the pivot moves, it forces part of the teeter totter part on the right to move up or down and make contact as appropriate.
For many of the switches, I have all the parts and I might be able to solder them back together, but I'd have to be sure that the soldered joint was stronger than the original piece, otherwise it's just not worth it. So if anyone runs across switches like these and knows anything about them, please let me know.