[mr.t206]

I would like to apologize in advance if this topic has already been brought up, I just saw this thing and had a couple of questions. First, if this card was covered in shillac how was sgc able to authenticate it? Wouldn't the shillac pose a problem once under a microscope? Considering it would look different than a raw card not coated in a substance? Maybe its just me, but I kinda thought the shillac would prevent sgc from grading it. Maybe I'm wrong which is why i thought id seek the advice of some of you more seasoned collectors. Thanks