What's in a name? North British 20 Year Old 1991 - Cask Strength Collection (Signatory) whisky is called whisky because it's produced in Scotland. Were it from America it would be spelled North British 20 Year Old 1991 - Cask Strength Collection (Signatory) whiskey, rather than whisky.
Nose: Oaky and floral with sawdust, woodsheds, barnyard notes, custard and spice.
Palate: Lavender, perfume, vanilla, rose petal jelly and various conserves. Toasty and cereal sweet.
Finish: Good length, with toasty oak and sweetness.