Chateau Branaier

[LittleFish]

I'm new here, I'm not too up on wines (Hence why I placed it in this catagory.)
Someone gave us a bottle of wine many years ago and we put it in the cellar and forgot about it. We want to know whether it is still good. It is a 1971, Grand Cru Classe, Chateau Branaire (Duluc-Ducru), St Julien Medoc, red table wine, imported by Chevalier Importers.