One aspect of war that is not normally discussed is the transportation of temperature sensitive material.  Blood, meat, and some chemicals needed to be kept cool for use in the field and needed special trucks to deliver the goods.  Here is a set of photos showing the trucks of the unit!  Try finding these anywhere else!  Scanned from original negatives.

UPDATE:

After cleaning out a forgotten box in my closet, I was able to find some additional negatives from this grouping.  Enjoy!