Provenance Port Ellen 21 Year Old McGibbon`s is a limited-edition, age-statement single malt whisky produced at the Port Ellen Distillery on the Isle of Islay. Distilled in 1982 – just one year before the Port Ellen Distillery closed – this highly collectible single malt was matured for 21 years in a single ex-Sherry cask (#479). It was bottled for the McGibbon`s Provenance series in 2004.