never seen before

[Guest]

I just aquired a 54 olds 2dr hardtop options include p/w p/s p/s air conditioning mounted in the trunk with 2 blowers. The air comes up in the rear window where rear speakers usualy are and then there are tubes running down both sides of inner rear fenders coming out just infront and above the tail lights, where there seems to have been chrome air duck covers. Also in the roof there are vent like devises front and rear both sides,with what looks to also have interior lights built in. I am trying to find anyone who would know what type air unit this is and if it is rare.