Tony Thompson asked:
"The comment below stimulates me to ask if there is a summary list anywhere of landmark dates for freight car paint schemes. A further example might be, 'UP changes all lettering to yellow, 1947.' Anyone?"
> The CP was repainting their steel cars with "Spans The World" starting in 1947 and so these cars would be being painted as well.
John Nehrich took a shot at it - the results are on the pay side of the RPI website.