Imperial 1976 / 25 Year Old / 70cl / 59.2% / Signatory September 8, 2009 by Gary Leave a Comment Imperial 1976 / 25 Year Old / 70cl / 59.2% / Signatory Single Speyside Malt Scotch Whisky. You can buy it here: Imperial 1976 / 25 Year Old / 70cl / 59.2% / Signatory Or you can compare prices from a selection of suppliers here.