here are a couple pics of the 74 DD I got the other day. You can see it much better under some glass.
In the bottom pic you can even see it on the T and Y in liberty.
Tell me what ya think, is it one? I sure think so
It's difficult for me to tell from your photos. Need a little bit higher resolution.
The R looks correct but the U seems to go in a different direction. Check for spread notches on the right side of the T cross bars.
Nice catch, here's my post about one I found with pics might help. http://forum.treasurenet.com/index.php/topic,308466.0.html