@josh, first welcome to CCF. Second, I agree that the crimp seems to be damage such as from wire cutters. However, I'm inclined to think that the dramatic color change is due to missing cladding in this region. Confirming that the weight is lower than mint specs would help. What I am less sure is if the damage predated the missing clad (I.e. is there way to de-bond the layers in a clad quarter? I don't think so, but someone may have found a way. If it was a mint error rather than a manufactured error, then I think someone has subtracted a significant amount of value by this damage.
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz