TYB!
I read this earlier today and found it when I was going through the NSA's National Cryptologic Museum. I thought it was interesting, and it made me think of this place kek.
Provided some excerpts. (Hey, look a Q and an anon!)
https://tile.loc.gov/storage-services/public/gdcmassbookdig/baconsdialinshak00clar/baconsdialinshak00clar.pdf
https://www.loc.gov/item/23002062/
Just saw, my bad!