Insider knowledge: North British 20 Year Old 1991 - Cask Strength Collection (Signatory) whisky is named whisky by virtue of the fact it's from Scotland. If distilled in America the spelling would be North British 20 Year Old 1991 - Cask Strength Collection (Signatory) whiskey, as opposed to 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.