67 windshield washer pump - foot driven, believe it or not. I'm helping restore a 56 TBird with no w/s wipers whatsoever, it was an option. So I guess a foot pump solution is better than nothing
Looks like a cardboard sleeve pushed over the pedal.
These are great! This is also the predecessor to intermittent wipers. If you push down partway and release the wipers go one interval and park. If you push harder and release you get wiper juice and one interval. Keep your foot on and they stay on for as long as you like.
It takes practice to not hit your high beams. It takes more practice to use this, shift, and flip your high beams.