1978 Red wine - ok to drink ???

[Rich54]

Hi, thanks for all your advice and comments everyone.
We opened it on Christmas Day.
The cork was moldy on the top and crumbled when pulled.
The wine itself looked clear and had a tawny tinge to it.
The bouquet was rich with wood and fruit.
Tasting was great fun, stronger than usual flavours coming through. Very heady. No vinegar or mold present although some tiny suspicion all was not right.
We decided not to drink it fully as we felt at least one of us would have Christmas dinner in A&E.
Worth doing this. Thanks again and we hope you had a good Christmas and have a happy new year.
Rich54