Union Pacific Passenger Cars

Please could anyone tell me when UP first introduced corrugated sided passenger cars?

The picture in this link is roughly what I mean:

formatting link
Thanks,

Roger Thomas, Swansea, UK.

Reply to
Roger Thomas
Loading thread data ...

formatting link

IIRC it was after WWII, but don't know exact date(s). But these guys will:

formatting link
If you're fussy about prototypical correctness, the membership cost is a bargain.

Reply to
Wolf Kirchmeir

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.