I was going through some old screenshots, and I came across an old mastery game in the T71. With the tank in its current state, I saw the damage I put out, and thought, I wonder what the damage record is for the tank. Low and behold, I have it. But here is where the problem lies. I don't have a screenshot with my username on the screen. So while I technically hold the damage record for it, (according to WoTB stars) I can't upload it because it would be an invalid submission. So I figured I'd just share it here.
The current approved damage record is 4,161.