Well, Cuda, after a heck of a lot of Googling, and I actually think I ran across this one on another search, I cannot do more than this.
It was called an Aerobus, and at least one other name, it was used at the Mount Hood Oregon National Park in at least 1951 and it was featured on the cover of Popular Science in their August 1951 issue.
Sadly, at this point I cannot identify the maker, although I could guess Fageol, perhaps.
Bill