WW pivot clip

I think this site is "the best" for general MOPAR knowledge and help.
For example, and on a related note, I have a 67 B body.
I just found out the car has a variable speed motor and a 2 speed switch.
Knowing the car and history, I was willing to bet it came from the factory like that.
WTF?
Does that even work?
It must have at one time.
It sure doesn't match the factory schematics so I'm lost till I can dissect it.
I just found Redfish's post number 3 here and gave him a like.
But can't reply to alert him. It's an old thread.
Now all I need to do is figure out how it's wired.
I've got the switch in front of me and working on it.
Wtb: 1967 variable speed wiper motor