Krug Grand Cuvee?

[NBella]

I am new to the board and need some assistance... I was given a bottle of champagne as a wedding gift back in 1988, and I have kept in in the original box in a dark cool closet over the last 16 years, without knowing much about it other than it was worth not drinking on a whim.

I have tried to look online for more information and have found some sites that have a similar looking bottle, but I was wondering if any of the experts on this site might have any more facts to share with me.

It has to be from 1988 or earlier, the box is a dark red with KRUG, Champagne Grande Cuvee, Reims-France.

The bottle label says GRANDE CUVEE CHAMPAGNE, KRUG,
REIMS, BRUT, 750 ml, Imported by Premiere Wine Merchants, Inc. New York, NY, produced and bottled by Krug-Reims-France......on a off-white octagonal label with dark red lettering.

Does anyone have any advice on when it should be enjoyed, how much it is worth, or any other facts?

Thank you for your help!