Hello....I had just recently been given an old bottle of Dickel whisky for christmas (I think it says 1976 on it). My grandparents had it stored away for some time and thought that I'd appreciate it, considering I've been trying to get into whisky. In opening the bottle and taking out the cork...the cork was so saturated and wet that it just fell apart. I don't think the whisky is bad because it taste pretty damn good. My question is.....is there any other way to store my whisky without using a cork? Is there a substitute I could use for a cork? Also, is Dickel a good brand of whisky?? Again, I'm just getting into it and my pallet is a little immature

If anyone had any input, that'll be great!
Thank you.