what is decisive for the CP paint?

Model Railroader Prototype information for the modeler
1

Hi, I´m Christian from Germany,
what is the reason for the paint of CP centerbeam cars? Is it: the province, the company or is it the time or what else?[8)]

2

Are you looking for photos of these cars? If so, there are quite a few over on http://www.rr-fallenflags.org.