I saw this a few weeks ago at Schembechler. It was a display for the history of the helmets at Michigan.
For the current one, I thought it was interesting seeing what looked like a small Blue foam(?) M stuck to the front bumper on the helmet in the case that talked about the current design.
I thought it was just something for display. Well, it looks like that's a real thing now based off of a photo Canteen tweeted.
Interesting. I don't really know what to think of it.
The front bumper looked like this since 9/25/1985