At 12:51 PM 1/25/2012 -0600, you wrote:

http://www.atsfrr.com/resources/Williams/TimkenBoxCar88.jpg

had a sizeable Santa Fe logo on it. I wonder what the connection between
that box which does not have ATSF ID and the Santa Fe.

Other pics of the same car exist with a different billboard. Almost reminds me of a Lionel "Aquarium" car. I wonder if that panel was painted to go along with whatever railroad the car was demonstrating on at the time?

Andy