I do not feel the Gehrig in question is trimmed, other than possibly the upper right which was filed down due to the excess paper. I feel what we are seeing is simply from someone using too much force to press down the lifted paper. I would have to see it in person to know for sure but that is my impression. Grading companies should catch alterations that are obvious but shouldn't we be more pissed off at the people altering the cards? I mean it is a ton of fun
to beat up on PSA but how about the FBI taking a look at some of the obvious card restoration that goes on? It is one thing to get a card bumped but another to change it's appearance in order to get it bumped.
I have said it for years on this board. All cards are at risk of being altered if in so doing their value increases enough to justify the time involved. Lessor condition high dollar cards are as susceptible to altering as the high grade material.