Ringer Cutoff Attachments

[paul-f]

There have been many discussions over the years about telephone sets with a ringer cutoff feature, such as the WE 305, and the ability to wire just about any set with a twist key for that function.

It has been noted that the Bell System always made sure there was at least one permanently on ringer attached to each line, so they'd minimize the chance to miss the opportunity to get revenue from a call that wasn't answered.

Apparently the "need" for silence just wouldn't go away after modular wiring and customer owned phones, as an aftermarket developed for attachments to silence those pesky ringers.

Here are a few photos from past auctions.

I have a Trimline with one of those attached switches.  Does anyone have other styles to share?  There must be lots more.