UPD: solved, thanks
Please correct a misprint in the year line (I can't do it because the coin has an owner)
749 instead of 649
https://en.numista.com/catalogue/pieces196747.html
Confirmation:
http://search.zeno.ru/index.php?v=0&ae=on&c=khwarizm&t=&k=&d=&wmin=&wmax=&smin=&smax=&m=&ymin=749&ymax=749&y=&u=&a=&e=&f=0&s=0