Calla Lees Chardonnay 1989

[Anon6864311]

I am definitely a novice, but I have been saving a bottle of Callaway Calla-Lees Chardonnay since 1989, my daughter is getting married in a couple of weeks, and I was planning to un-cork it for the reception, but it occurred to me that it might have a slight value, can anyone tell me a value on a bottle from 1989, or if no value, do you think the wine is still good?
Thanks for any help with this.