Looks real. Can you give size and weight please ?
Coin minted in Graz, Styria, see "STYR" in legend reverse and the Styrian "panther" on the center of the coat of arms.
Though I don't find it for this date. It makes it suspicious.
You need someone with Herinek at hand.
Sorry not to help more.
Regards, André
Quand l'Histoire et la Géographie se croisent sur nos pièces de monnaie ...