The 50 Year Old Rare Tawny is a symbol of Penfolds heritage, typifying collaboration – Penfolds collaborated with glass artist Nick Mount to create individually blown and hand-crafted to suit the rarity of the wine. Among the many individual components in this blend is the 1915 vintage, reported to be the foundation for the first Grandfather cask. Only 330 bottles are released in each series, less than 1 barrel.