I have seen Strowger switches in the wild. In 1965-66, my first grade class visited the local AT&T Central Office. We saw a wall of what I later identified as

I have seen Strowger switches in the wild. In 1965-66, my first grade class visited the local AT&T Central Office. We saw a wall of what I later identified as Strowgers. I thought they looked like mailboxes on end at the time. The MIT dorm phone system used Strowgers at least through 1980, and could be seen by curious students.