Santa favors the Willys MA over the Red Sleigh

UPDATE:  Brendan noted that this is indeed a LOC image. Here is a link to this image and others http://www.history.army.mil/photos/Holiday/wwii.htm.

I suspect it was just easier to stick the tree in the MA rather than his sleigh?  It's a great pic.  I found this during an image search, but I could not locate the source.  It looks like a Library of Congress type of image.  If anyone knows of the source, please let me know so I can properly credit it.