@The GN Man posted:Best color reference, IMO, for the GN S-Class 4-8-4’s is the book “Great Northern Steam and Electric, In Color”, by David Hickcox. On pages 60-61 is a great photo of S-1 #2555 freshly painted and in sunlight outside the Hillyard (Spokane) shops on 10/09/1951. S-2 painting would have been nearly identical.
I have the first-run MTH S-2 and IMO they did an excellent job on these, including colors.
That's a great pic. I found it now.