Hi Milorad......welcome to TFF.
First off, Gardone is a town and region in Italy. That's where the gun was made. Is there any other writing on the gun? Please give us all
of the writing on the shotgun, exactly
as it's written.
Also.....what type of shotgun is it? Single, side x side double, over/under, pump, automatic?
And.....if you can post pictures of it, it would be a big help in identifying it.