I went to the bank with my mother to meet with a financial advisor. The conference room we were in had this display on the wall: The document in the lower left corner is the original charter for the Kellogg National Bank of Green Bay (now Associated Bank NA). The document in the center of the bottom row is a letter from the Treasury Department authorizing the formation of the bank
Those are great to see and thanks for sharing. You never end up seeing those documents in a bank or other financial institution. Were they in an area of direct sunlight? Hopefully they'd do enough to protect the documents from UV rays.
They are in an interior conference room without windows. The second and third charters as well as the share certificate for the Federal Reserve Bank of Chicago are in other locations in the bank. I could not take pictures of those for security reasons.