1964 dodge dart wiper switch

64 and 65 FSM are probably similar in some areas and definitely not as far as the wiper switch. That electrical box hanging off the side looks similar to the convertible top/rear window circuit breaker found behind the driver's kick panel on a 65/66 A Body. As far as the rest of the contacts, they are not even close to a 65 single or variable speed switch. You would be ahead of the game if you can find a 64 manual or maybe if someone has the manual they could scan the appropriate pages for you.

EDIT: are you sure it's not a variable 2 speed switch?