How valuable is 1981 Napa Valley Rose

[Moukeymic]

I have a bottle of Napa Valley Rose, 1981, still sealed, bottled by Napa Vinters, and signed by Don Charles Ross.
I found this bottle in the house I just moved in to.
Can any one tell me any information at all about this wine?

[Innkeeper]

Hi Moukeymic, and welcome to the Wine Board. Your wine is almost certainly dead with no value other than to a curio collector. Would check with the EPA first, but you might be able to use it as weed killer.