Back in 1968 I was on a fantrip that had an N&W heavyweight business car in the consist. i vaguely recall this car having a blue and yellow color scheme. Does that sound right? Where's there a photo of wat that would have looked like?
Blue was used quite a bit on the former Wabash and after the N & W took over the Wabash and others I seem to think they used the blue for some locomotives and passenger cars for a period before the passenger cars went back to red and the locomotives generally to black.
Noel Weaver