Old Zins

[PackRat707]

I have a couple of old zinfandels along with a bunch of other wines I found in my grandmas wine cellar, she can't drink anymore cause of her health. So I was wondering if these bottles are worth anything.

1979 Louis M. Martini Monte rosso zinfandel
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1992 Sutter Home White Zin
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1994 Ravens Wood Zin

Any feed back would be great thanks!