I have 1 of these that I pulled from my aunts old house (c. 1922) There were about 10 of these floating around, along with some matching surfex toggle switches. Her house pre-dated 3 prongs by about 30 years , as I'm guessing the surfex line did as well... Just curious if you're looking to complete a collection or some project...
Guys, This is the email as I got it.....in its entirety. I don't know if it was even meant to be posted. I had hoped that Bill M. would post an explanation on the thread.
I have several of these devices, hidden away somewhere in the back of my shop...2 wire + G...I don't even remember where I got these things from. I do remember that the grip strength for the inserted connector wasn't all that great - some 16 awg and 14 awg cords would simply fall out. Hmmm... Could be the reason they are so well buried...