Bohemia, Royal mint of
That is what a search found - namely this >
https://en.numista.com/catalogue/pieces81995.html
With one side having that lion within a circle.
The other side has something with a flat base in the middle circle,
with another circle outside it with lettering, then lettering again outside that.
But - not sure if it is that coin. The lion claws look different,
and the lettering on other side seems to have a Gothic E instead of the normal E letter.
Similar diameter, and same metal though. Still looking ...