Thanks Tim, that article is excellent, and explains a lot about why there is so much confusion and disagreement on this matter.
As for me, mine is a Thriftmaster, but is a 57-and-a-half, where they started bolting on some 58 parts towards the end of the 57 production year. Therefore, I can't begin to guess whether they painted the engine in 57 or 58 colors (not that it matters much since the author was making major assumptions during those years, anyway).
That makes it a toss-up between green and grey, and I like grey better, so grey it is.
Thanks a lot,
Ed
