Anyway there's a ton of this stuff from 16th-century Ottoman Hungary that's now in the Austrian National Library and I'm digging through all the microfilms
Basically like ᘻᑘSᖶᗩᖴᗩ ᕵᗩᓰᕲ ᕼᓰS ᖶᗩ᙭ᘿS
Oh yeah, almost forgot that they have their own numbering system too. You could call it "shorthand" because it's shorter than writing out the numbers in words, but it's not shorter than just writing the numerals
And this wasn't even their only unique script, they had the dīwānī/divanî script for non-accounting things
https://w3id.org/vhmml/readingRoom/view/508349
https://w3id.org/vhmml/readingRoom/view/508349