@Slipster17 Only reason I suggested it was because of the several 'additional' associates added to the B-Pillar for that race. Would kinda make sense that the U.S. Air Force would be added as well.
Especially after you photos above that you posted, it makes way more sense that it has to be 'U.S. Air Force', or even possibly an entirely different sponsor. (I don't know why, but "US Microprint" is popping into my head, as I swear I recall some sponsor with that name back then in NASCAR.)
Why you ask? When you zoom in heavy on the picture I mentioned in my post above, you can clearly see it's an "U" there. There's no way it can be a '1' for 100 Years honestly.
Also, when looking at the C2 photo, there's another issue. That particular Ford Racing logo should be the the same width as the Motorcraft logo below it. The 'Racing' text lines up perfectly width wise as Motorcraft. So, if anything, that should honestly be adjusted.