Glen Scotia 1974 / 31 Year Old / 70cl / 44.9% / Signatory July 5, 2009 by Gary Leave a Comment Glen Scotia 1974 / 31 Year Old / 70cl / 44.9% / Signatory Single Campbeltown Malt Scotch Whisky. You can buy it here: Glen Scotia 1974 / 31 Year Old / 70cl / 44.9% / Signatory Or you can compare prices from a selection of suppliers here.