OK, this is even more
of a mystery than the previous. I'm not even sure whether it's medieval.
My initial guess: Golden Horde. A guy I showed it to immediately said "Ottoman akce", but I'm not sure how plausible this is.
I do feel like I've seen that pattern of squiggles somewhere
... Crimea maybe?
15x12 mm, 0.77 grams.
I don't think the second pic is the right side up, but given my unfamiliarity with Arabic squiggles it's hard to say.