While it's commonplace today for a Scotch distillery to blend their whiskies together and then re-barrel the resulting recipe, it's rare to find a marriage of whiskies that were blended and barreled from day one. You'd have to go back to the 1960s to find an example of such a process, which is exactly what we did one morning in Glasgow when we came upon three mystery casks at one of our favorite suppliers. "No one knows for sure what's in them," our agent told us, "all we have is the date: December of 1964." It was exactly this uncertainty that helped these barrels fall through the cracks, year after year. No one knew what was in them, or what to do with them, so they sat in the warehouse, getting older, and older, and older until we gave them a home. This 51 year old blend of grain whiskies comes in at a slightly higher proof than its sister cask and it's the richer and rounder of the two. Whereas the other whisky is creamier, this whisky has a bit more fruit and a certain pop on the mid-palate that you wouldn't expect after fifty-plus years in wood. There's a hint of toasted oak on the finish and a bit of oily resin as well, which is standard for hogshead-aged whiskies of this age. After five decades, this whisky is still full of life and character. In no way is it tired, over-aged, or past its prime. It's primary in its profile, but dangerously drinkable and most importantly showcases all of the fruit, texture, and simple pleasure that grain whisky has to offer.