https://www.google.com/books/edition/Filing_Office_Managemen...
While I've always liked early physical filing systems, and something like a Globe-Wernicke cabinet can be quite beautiful (although they often only have one finished side), I'd really like to know about earlier systems.
I mean, the British Admiralty or the Venetian Republic had some serious paperwork storage, usually bound volumes on shelves I imagine. Crazy stuff.
A good subhistory of storage would be the invention of those room-sized shelves on wheels so that there's only one access path. I've seen some impressive ones.
Since then if I see a photo or movie with that stuff it always jumps out at me.
Marriage records had indexes, constructed on the fly. There was the equivalent of a radix sort, pages for a, b, c... m, mc, ...through z. The bride-groom and groom-bride entries were both made sequentially in the index page, with the page number for the main record added. A search for bride or groom meant reading only a page or two of index records. Sometimes the page number was written wrong, but reversing the bride-groom index gave you a second chance at it.
The main records were sequentially recorded by license issue date, when the book got full, a new book was started.
All of this in fairly readable, well written cursive.