The Karuizawa 1981 Geisha Label Cask #2100 is a highly sought-after, 31-year-old single malt Japanese whisky, bottled in 2012 at a 60.4% ABV from a sherry butt. Produced by the closed and defunct Karuizawa distillery, this rare spirit is renowned for notes of raisins, figs, and dark cherries, frequently appearing in luxury auctions.