I tried to do some searching online, with only a few results.
http://www.ackits.com
http://www.autoacforum.com
I don’t recall where I learned this, but Chrysler AirTemp was used in the '59s. I think they were the factory installed units. I had an AirTemp window decal which I was going to install on my cvt, but I never got around to it.
I don’t know which companies were selling under-dash units in 1958-9. I’ve seen some wierd units in '59s in junkyards…no telling when they were installed, however.
The Mark IV shown is very attractive, but I do not think it is period-correct. I was unable to find out who made the Mark IV…may be a GM product?
The ONLY person I was able to find who would send me photos of his factory-a/c 1959 Plymouth was John Zastrow in Wisconsin. (fins59@charter.net). I sent most of his photos to Ron Keij when he bought my car (and now Ron’s gone off-line to deal with his father’s illness).
While John Z’s car has a 318, my car has a 361, so I ended up with a slightly different looking engine compartment. I did my best to install factory a/c correctly. Beginning with the diagram pictured on 24AJ of the 1959 Mopar parts Book, and a belt diagram which came from an unknown source (sorry!), combined with photos taken at car shows, I also searched the Web, wrote letters and emails..I pulled pulleys and brackets out of a '64 Chrysler and several other cars, and came up with something which would 1) bolt to the 361, 2) support the generator
3) would align with crank pulley and p/s pump. It was quite a challenge! I ended up with a single belt system, which never got completed due to finances and lack of demand. (I live in the PNW).
I agree with Dick’s advice…call the experts and pick their brain. Also try your local a/c shop…ask questions!