Has anybody heard of Duma Wineries

[nancham]

While helping a friend move I came across a bottle of Duma Cabernet Sauvignon 1988. I am not a big wine drinker but my father fancied himself as an expert and I've never heard him mention this one.
It's my friend's intention to turn it into vinagar as she does not drink at all. I've convinced her to at least wait until we find out more about it!
Does anybody know anything about Duma?