I have an electric wiper motor in my 58. As far as I know, it is original to the truck. I know that it's been in there at least since 1980. Prior to that, it is possible that my grandfather could have installed it and I woldn't have noticed/known. It has two speeds and a "park" function.
It would be pretty difficult if not impossible to get a decent photo of it where it is, installed under the dash, though. I'll take a look tonight when I get home.
