Watkins had lots of white Great Danes as well. If you have the Ertl GD reefer kit, you could strip the chrome and go with the white trailer. I think the stainless trailers were starting to be replaced by white ones around '71-'72. The Fruehauf pix I have show them to be white, but with the little vent door in the upper left corner of the nose like Ertl's Great Dane kits. Here's a white GD from the '70s with the newer graphics. Note the eskimo has since rode his skis off the trailer. I think late 1970 or '71 is when he disappeared. Of all the Watkins pix I have, one thing I can't seem to find to confirm my theory is trailer wheel color. I believe the spokes are red, but not sure.
You're welcome. I've been meaning to share these but kept forgetting. The pic of 3950 I just had to share because it's like a piece of history for truck modelers. The fleet pic I knew you guys would enjoy. As to the Watkins Motor Lines photo cd, well worth it. Full of project ideas. Great pix of the trailers showing the change in the graphics in the early 1970s when the eskimo was removed from the trailer. Also, you will see the change from the bare metal finish to the white trailers that happened during that period.