1968 Freemark Abbey - What Will It Be Like?

A potentially interesting bottle of 1968 Freemark Abbey Cabernet Sauvignon from the Napa Valley came into my possession today, and I have no idea at all about how it will taste. It looks to be in absolutely impeccable condition,  with the fill level well into the neck, and having been stored in the same place for a very long time. It could, of course, taste like complete shite, but then again it might, just might, hold some interesting wine inside. It looks pretty brown from first look, but that isn't necessarily a bad thing, so we will see. I will try it sometime this week, and will report back forthwith. If anyone knows anything about this wine, or has tried it, then please let me know...