1989 Chateau Margaux premier grand cru classe'

[hotwine]

Welcome to the board. Suggest you query wine-searcher.com. You'll see several retail sources for that wine; but the value of yours would be heavily dependent on provenance.... proof of pristine storage since release. If it was properly cellared prior to you winning it, and you immediately stored it under proper conditions and kept it there until now, and have some way of demonstrating that.... then it should have value. But if you've had it upright in your kitchen pantry for several years, it's probably long dead.