I just used this coin in another post and thought I would add it here. It's an example of a bi-facial die dent. The dies clashed on a foreign object putting a dent in both dies . 1996 dent a by stoneman227, on Flickr
This one has been shown before and represents a true, eye visible, how'd this get through any kind of inspection, mint error:
Piggybacking off @19Lyds. Some kind mite inside the packaging. You need a hazmat suit to work in the mint!
That pattern left is so common and to see the peel right next to it leaves no question the pattern is a lamination. Just a tip, I'll bet you can fix that with Elmer's Glue. Really, I'm just silly looking at this thing. This is amazing!
Didn't have time before work, and these photos aren't the best, but here is my new 3 cent nickel split planchet after strike.