u/CouplaSnags

I was planning to keep this Mew 151 promo sealed in my collection with the other 151 promos, but I’m wondering if it might have a chance at grading a 10.

I’ve never graded a card before, so I would love everyone’s opinion. The centering looks pretty good, but I’m not sure how PSA grades corners and I know the gem rate for this card is really low.

I know the condition of the back will also matter, but based on the corners alone, do you think this has a chance?

As a beginner, I’m trying to assess what condition this card would be classified and keen to hear everyone’s opinions. The front is fairly clean but the back is obviously well loved.