Decades. I'm not sure which batch this is, i'm under the impression there were two and I also get the impression one was seen as the better and older option. Nose - had to really give this one some time, it's overwhelming when you first pour it. You can already nose how thick the whisky is, it comes in at 104 proof but the nose has the body of something closer to 120. I get rich caramel, citrus notes, cherry, some aged oak and then some younger more unfinished oak notes. Taste - I get that vanilla, leather, cherry oak that I often get with older whisky. I'm actually amazed at how much this bottle seems to change each time I go back, each time it comes off a bit older than the last. There's some sour notes, some fruity notes, and it finishes with a big puff of well behaved oak. Really good stuff, but I have to ask myself is it better than Rare Breed or Kentucky Spirit? That's where this one somewhat drops off for me a bit. I'm really not sure it is. Really nice bourbon and I'm going 3 stars. If you're ok with the 130, get it. If you're not, get rare breed and you won't be getting all that different a bourbon. Wild Turkey spoils us with just outstanding lower priced bourbons, but as a result their higher end stuff really doesn't punch any higher.