You need to pull back a little on your close-ups; maybe capturing 3 or 4 letters at a time. In addition, it may help if you give us a verbal description of what it is you see that leads you to think that it might be a DDR (it'll help us as to where to focus on). Semper Fidelis
I see some compelling blurry pics kinda like Sasquatch in the woods pictures. Better pictures please.