I can't find the message regarding the GM&N car in the thread. I too bought one of these cars way back when. It was a particularly noxious shade of green -- a shade usually associated with nausea -- and I had my doubts as to its authenticity at the time.  "But it was for a good cause." Can you point me to where it was discussed. Interested for its amusement value if nothing else. Thanks!
It was my original post. I bought the green GM&N car at a SER convention in Mobile. it was the convention car, designed by a GM&O modeler, Jim Blanchard, which I thought made it correct. Bill Williams