I recently got an unopened bottle of Gran Teresa Selecto from my dad. He doesn't drink anymore and just found it when cleaning out his basement. It was purchased sometime in the 90's although I do not know when. I know it is an older style of bottle which I do not think is made anymore.
I'm just wondering if this bottle has any rarity/value, and thus should I keep it sealed? Or should I just treat it like any other bottle and just open it and enjoy it?
Here is a picture of the bottle. If it is helpful I can upload some more pics.