Kanppogue Castle 1951, from the Tullamore D.E.W. distillery, aged 36yrs. Sample courtesy of IWC.
Nose: Like a sweet fermented banana, and some other strange notes like rum & raisin icecream, leather and spices.
Palate: Lighter than you'd expect from the nose, with a spicy tangy pot still taste. Like a Redbreast without some of the metallic notes it can have sometimes.
Finish: Warming and smooth, but quite short.
Overall: This whiskey reminds me most of the other old-style pot still whiskey, the Jameson 7yo from the 1940s. Some of the same leather, or tool-shed type aromas but softened by the wood. Oddly enough I would have thought this whiskey to be younger than it is, in its late teens. Maybe this is proof of Jim Murray's statement that pure pot still ages a lot better than malt or other whiskeys.
My companion says it reminds him of US rye whiskey to some degree, like a Sazerac.