When we were at Bardstown Bourbon Co. we had lunch in their restaurant, Bottle and Bond which is becoming very poplar. The food is excellent and the chef is top rated. I happened to look at their selection of drinks and they carry some Historic blends that date back to the 19th century. There was one that was $1500 a pour, nice to be that rich.
They do have a Limited Edition called Collaboration. These are two bourbons aged 10 years and then aged 18 months. One is in a brandy barrel (113 proof) and the other is in a Muscat Mistelle (unfermented grape juice)barrel (94 proof). They are finished at Copper and Kings American Brandy Co. They are sold at both places and a few high end places.

David