Old bottle of Remy Martin champagne cognac

I’ll start by saying I know nothing about alcohol. The fanciest drink I make is when I mix vodka with soda. I found this old bottle when cleaning out my grandmas house. Mom said it was gifted to her father so it’s at the very least 30 years old since that’s when he died. What can I do with it? I’m assuming it doesn’t age good like liquor. It’s not of any sentimental value to anyone in the family. Can I drink it? Is there a market for someone who just wants a cool bottle? Do I just toss it? Any ideas?