Hi all, I am not a bourbon drinker but my boyfriend is... For a gift I got him the Pappy Van Winkle 23 yr. I hope he will like it but I am not sure. He started drinking bourbon about 2 years ago. I know he has had WT rare breed, Woodforf Reserve, JD Single Barrel, knob Creek, Makers Mark, etc. I also don't know which year I purchased. Is there any way to tell which year it is?