What is this copper?

[Kevo_DFX]

I have little hope for this one, completely toasted, but I though with weight and measurements there may be a chance. Heck, I got a scale for Christmas just for this reason!

Weight: 4.8 grams
Diameter: 25 millimeters

Thanks for looking!
Kevo

 

[Iron Patch]

completely toasted

That's unfortunately where the ID starts and ends. A guess would only be a guess.

 

[Kevo_DFX]

There is a bust on this coin. I have tried to outline what I can see:

With these measurements:

Weight: 4.8 grams
Diameter: 25 millimeters

can anyone think of a possibility?