Morgan Library
 

Visited the Morgan Library & Museum, NYC, last week. J.P. Morgan not only collected books, but original music scores. Here are a couple. Don't recall if the 1st is Bach or Franck, but both were on display. Many more stored and archived. One doesn't have to be a serious student of classical music for a visit to the Morgan to be on your list.

https://www.audioaficionado.org/atta...1&d=1670718223
https://www.audioaficionado.org/atta...1&d=1670718223

Interesting !