I noticed when watching a BArailsystem video of his CN/CP based layout, that I was the same well cars, but with reflective striping, and with a black rectangle shape with white letting with “CP,” and the car numbers.
I found these, and they seem to be updated versions with reflective striping and white lettering against black.
I find it easier to find photos of locomotives, cabooses and passanger cars rather then freight cars with the many Train Pictures sites on the web. I have to ask if the later are just updated versions of the same well car, with upgraded features like the reflective striping.