Know anything about this A/C?

[rwolf9653]

This A/C unit came in my 67. The guy I bought the truck from said it was a factory air conditioner, but it is unlike anything else I have seen. In case the pictures are not clear, the unit is mounted in the glovebox and has its own vents so it is a self contained unit. Everything under the hood looks normal ( compressor, condenser, etc.). At this point I do not plan on using it, but keep it as a cool nastalgia thing and would like to know more about it.