WOW again. I think that your work is going from strength to strength; same applies to the historical research.
Seeing those small upper berth windows reminded me that I have one UP car that has them. It's an MTH car that I think came as part of a Dealer Appreciation Program set when the PS2 version of MTH's monster DDA40X was first issued, which I think was about 10 years ago. This is the only streamliner car I have with what are "clerestory" windows but I was too lazy/unmotivated before now to look up the car and see what they were for. As you can see, this is named/numbered Green River #1602:
As you can also see as a result of the interior lights being on, in the model the upper windows are in fact molded straight through the body shell although I can't see that there are berths represented behind them.
This car is listed in the UP records as a sleeper and I think that the model represents it in an early and maybe the "as built" configuration. The car, which seems to have been rebuilt extensively at least twice, is still in the UP Historical Fleet but the upper widows are gone and the lower windows have been totally reconfigured. Details of the current version of this car are here: https://www.up.com/aboutup/spe..._equipment/index.htm
I was particularly interested in the Pullman Travel Comfort poster you photographed. That must be very rare; I certainly have not seen an image of it before and I have researched a literally huge number of streamliner posters.
Thank you Hancock. This was a fun build because I got to visit 3 of these National series cars in person.
After posting this topic the other day and only showing 3 of the sleeping cars it made me want to finish the set and built the 4th missing car. Since I run my trains (a lot) I really wasn't looking for a perfect mint condition example of the Placid Haven in an unopened box. So, I dug into some old posts in this forum and I made up my mind on how to do the missing Placid Haven sleeping car.
There were several older posts about how to use ELO to remove painted names off the sides of a car. I even found a old post where you wrote a step-by-step on how this could be done. So, I purchased a used Ocean Sunset K-Line sleeping car and then bought the Union Pacific O-Scale Microscale decal kit 48-198. The big test in the next few weeks is going to be if I can successfully remove the red "Ocean Sunset" paint from the side of this used K-Line sleeping car without messing up the factory Amour Yellow paint underneath. If I can manage the ELO, there will be one last interior build in this series!
By the way that exact window arrangement on your MTH car is from the Union Pacific's Alpine series of sleeping cars. The Alpine series of cars were originally built for Union Pacific in 1953 as 14 section sleepers. Then in 1965 all the Alpine cars were converted to 44 seat coaches by Pullman Standard.