I've found this coin in one of the 'mixed coins bulk' I bought on ebay. I went through numista catalog and the closest one I've found was this:
https://en.numista.com/catalogue/pieces276473.html
However, the obverse is entirely the same, few details are different - i. e. the shape of the flowers and some characters. Reverse's got ony denomination matching, that's why I assume it's 10 cash. Not sure if it's copper or brass
There is no latin alphabet present on the coin. My kitchen scale shows 5g, the diameter is 18mm. Coin is worn, but hopefully still can be identified.

I'm total amateur, so sorry if I missed something obvious. I've searched the catalog looking at all coins, but either missed it or there is no picture on Numista.
Many thanks for looking at this.