[What is this coin?]

If it's one Hryvna, is it some kind of currency?
Good price, I did not expect such a high price for a silver coin. Thank you very much.

[What is this coin?]

On the reverse, Ag 999.9 is written, in the second picture - so it's probably a silver coin, my friend says.
Thank you for your information, as if someone had some more accurate info - I will be grateful

[What is this coin?]

What is this coin?
I can not identify what kind of currency it is, it's a silver coin to my eye.
Can anyone help me identify this currency?
Thanks

https://imgur.com/0RXTHXC
other side
https://imgur.com/VdHW4bA