need help

[TABJOY]

Found a bottle while cleaning out uncle's home. It is a Riesling that is all I know. Here is what the label says: Mosel-Saar-Ruwer BEREICH BERNKASTEL REISLING At the top it says This wine was given the brand name THE BISHOP OF RIESLING. It is 1982 vintage. Sorry for the caps, I wasn't yelling just wanted to print the label as it reads. Is this worth drinking? Any value? Should I keep it? Thanks for any info I've looked all over the internet to no avail.