And even there, "left" is a pretty different concept from "left-handed".
On a different note, French for left is "gauche".
From American Heritage Dictionary 4th Ed. (En-En)
> sin·is·ter (sĭnʹĭ-stər)
> 4. On the left side; left.
> From Merriam-Webster's Collegiate 11 (En-En)
> a. : of, relating to, or situated to the left or on the left side of something; especially : being or relating to the side of a heraldic shield at the left of the person bearing it
The bar sinister? Calling that a sense of the English word would commit you to saying that "vert" is English for "green", "gules" is English for "red", "or" is English for "gold", etc.
Seems likely they are right-handed, then (or, this comes from right-handed practices).
mynegation's, Tai Le call seems best, and 13of40 example of Palaung which uses Tai Le is currently closest IMO.
I honestly don’t know but I stuck some handwritten symbols into Shapecatcher  and this is my best guess.
Other handwritten examples:
My other guesses were Georgian, Armenian, or (though unlikely) cursive variant of aboriginal syllabics.
Majority of speakers (>440k) in Yunnan province. "It is also spoken in northern Vietnam, France, Laos, Myanmar, Switzerland, Thailand."
That distinctive long, vertical u-shape is used in 5 vowels. (Reminds me of Voynich)
The Tai Le script, or Dehong Dai script, is a Brahmic script used to write the Tai Nüa language spoken by the Tai Nua people of south-central Yunnan, China
I first thought it might be Deseret Cursive , but I don't think that's it either.
It may be some Middle Eastern language..
Here what they looked like. It’s hard to compare with the low Rez but seems like not a match with this old Armenian..
Reference #18.475f7a5c.1614399207.477243f "
My impression of intense focus on oral tradition isn't that such groups had no form of writing but as something analogous to modern-day Sensitive Compartmentalized Information systems to prevent anyone in the out-group from learning in-group knowledge, like how the US government has "UNCLASSIFIED / CLASSIFIED / SECRET / TOP-SECRET / TOP-SECRET-COSMIC" etc. It would be hard to describe the exact physical properties of things like plants, animals, and space without writing and illustrating them, so maybe these are documents from one such group who didn't want the fruit of their scientific studies to proliferate?
But, some of what I'm assuming are the vowel marks are throwing me off, since they don't look quite right for any of the writing systems mentioned so far, at least based on the descriptions I can find. Someone mentioned that it looks like the paper might have been photographed from the wrong side, so maybe this is part of the issue.
My own guess, sight unseen, is "Bird-worm seal script"... purely because that was the answer the last time I saw this question.
And all cursive writings looks alike from far away.
It was part of early efforts to make learning Mormonism “easier” for immigrants.
The alphabet failed to take on. Original copies of what was printed are rare.
(Which, if I may be so rude, is an excellent idea because the English writing system is absolutely bonkers)
I wonder if it could be Russian cursive. It looks like it's maybe slanted the wrong way though.
Looks a bit French/Korean to me.
They have to post high resolution images.