Master’s Keep Cornerstone Rye is the fourth release in the Master’s Keep series, and the oldest rye whiskey ever released by Wild Turkey. For this one-of-a-kind Limited Edition, Eddie Russell hand-picked and set aside a secret lot of his oldest and boldest rye whiskey barrels, all aged from 9 to 11 years, then used his nearly four decades of experience to create a perfectly balanced spirit. On the palate, it delivers notes of warm vanilla, black pepper and toasted rye, followed by a cascade of honey and baked apple. At 109 proof (54.5 alc. by volume), the finish is bold, crisp and clean, with lingering notes of sweet spice and oak.