20th century limited

I want to detail passenger cars from several different 20th Century Limited versions, and I want to use the most accurate types of trucks. Where can I find information about what types were used in each of the versions? Thanks! Marty

Hi all. This is my first post. I'm a set designer in Australia working on a production of the play On the Twentieth Century. I'm trying to find images showing the interior colours of the drawing rooms TCL on both heavyweight Pullmans around 1935 and on Dreyfuss' 1938 streamlined version...