Tourist souvenir - copy of ancient?

Manfred1

I'm aware that this is only a tourist souvenir from an unknown country.

Can someone tell me if this souvenir is a copy of an actual ancient / or a close imitation of an actual ancient.
Weight - 3.175 g
Diameter - 14 to 18 mm
Unknown metal - non magnetic

Thanks in advance

Insider2

Sure looks like a crude copy but it may be a contemporary copy from a barbaric tribe.

SaorAlba

Looks like an Arabian peninsula copy of the Attic Athens tetradrachm.

Manfred1

Thank you for your effort and assistance