Greek Coin ID

Hi there.

I stumbled on one if these coins I forgot I had the other day. Not a clue what coin it is, the age and possible value

Any help would be greatly appreciated.

Diameter is 19.04

Weight 8.8 g

Hello, the weight 8.8g is a bit heavy…

Macedonia, Olynthos

Interesting. Thanks for that.

I weighted it on coffee bean scales, so it should be accurate. Could it be fake if it weights nearly double? Or can coins sometimes vary in weight by that much.

Thanks

Michael