I have not gotten far enough to look for new wipers for my 58. I have assumed that modern Anco or Trico wipers would be able to attach to the older arms, but if not an adapter might be worth making.
Trico does make replacement blades for the original arms in their Classic series.
Regarding wiper power sources. Model A Fords, among others, use a hand operated wiper in front of the driver. What about cars that were not originally equipped with wipers?
I don't believe any state actually requires vehicles to be retrofitted with equipment that wasn't mandatory at the time of manufacture. I know Texas has the idiotic safety inspections every year. My brother just took his GTO for an inspection and the "safety inspector" never even tried the horn or the wipers - both of which are required to function to pass the test.
Fortunately, Georgia eliminated this scam safety inspection on vehicles over 40 years ago.
