Pricing a 1984 Napa Valley Red Table Wine

[debprobert]

This is my first posting as I am not a collector of wine, just a drinker. I was given an unopened bottle of 1984 Niebaum-Coppola Rubicon Napa Valley Red Table Wine and I have no idea how to price it to sell it or even where to sell it? Maybe eBay? Can anyone direct me to right place or web site where I can find out the value of this bottle of wine? Thanks to anyone who can help me.