The Authentic Collection was launched by Wm. Cadenhead in 1991, and included whiskies from several rare closed Scottish and Irish distilleries, bottled for the company's 150th anniversary. It would later go on to become a mainstay of their portfolio, as the cask strength alternative to the Original Collection, which replaced their famous "dumpy" bottlings in the early 1990s. The Authentic Collection is now the flagship Cadenhead brand, and one of the most recognisable independent labels on the market.