One of my all time favorites.
Picture is 1929 Penn State Blue band at Yankee Stadium 1929.
It is signed by a bunch of guys we all know and love. Signatures are a little difficult to see in pictures, but I think you can get a decent view.
I have no idea when exactly it was signed, but obviously some were added later, like Berra, Durocher and Dimaggio.
The story for why the Penn state band is at Yankee Stadium is explained in the 2 pictures below. They are excerpts from the book about the Big Blue Band.
The glass broke when we moved and I was waiting for the basement to be finished for me to replace it.
Great stuff everyone.
Best,
Mark