Help with finding a specific year?

[Overholt98]

I'm a complete novice with wine---don't know the first thing about it. But I'm looking for a gift for a wine lover, and I wanted to get something really really good from 1978 (sentimental year). The person I'm giving to loves chiantis, but I don't even know if a chianti that old is good or not. Does anyone have suggestions for a specific wine I could get from this year?

Thanks for any help you can offer!
-Alison