Holy smokes, I think you just answered my question before I even had a chance to post it.
My 68 Cuda (purchased 3 weeks ago) has 2 switches on the floor. The lower one is the dimmer, which has to be fixed but that's another story. There's an upper switch that has more rubber around it. I tapped it a few times and it 'felt' like it was pumping something. Is this the manual washer pump?
I didn't see hoses leading to any washer nozzle on the hood. Does anyone have pix of what that might look like? I don't know what the original set up is supposed to look like, let alone how to get everything working again.