well, I am not sure what you mean by "mirror" (I have seen this term a couple times and I am not sure what it means). I certainly cannot see my reflection lol. After comparing mine to others online, I have noticed that it is in really good shape. All of the lines on both sides distinct and clear. There is a slight discoloration over the U, R, and I in PLURIBUS that gives a more gold/rust blemish when held under light.
Since I don't know the lingo about "mirror" and "worn", I should probably get pics posted ASAP. From what I can tell, I don't think they are special or different from the others so I will see if you agree.