Al asked me to post pics of the Challenge Medallian given to PGR / thru me. It will go to it's rightful home soon, and that's Al. Taking the pics was difficult, it's highly polished. The dark blue that you see with the Chief Master Sergent stripes with three over, is the same blue on the other side Army Nation Guard and Air National Guard. I just couldn't get the pic to come out, but you can read the inscription.