Possible old coin. I need help with identification

Hello.

You can see the attached picture. This “coin” was found in the forest in western hungary. On the back side there are 8-10 dim circles. The diameter is 24mm. There are no letters or numbers.


thank you
Vilmos

Looks like a part of an old button to me.

Could well be. With the front having a raised part - so NOT a coin,
and on the back the middle part is where the broken-off loop was to attach it.
So someone walking in that forest lost a button. Maybe.
These cropped pictures still do not help much ...