I recently got my hands into this coin
No idea how it got here, nor where it came from, I've tried to identify the text with some chinese speaking friends but we are unable to fully comprehend.
So far we guess that top left character is likely 畢 And bottom right character is likely 余
The other side of the coin:
As you can see there's definitely no "value" on the coin which we guess together with the fact that doesn't look like a chinese old coin, it's more like a memorial coin for some kind of finished study.
Thanks everyone!