Dallas Dhu 1975 / 70cl / 40% / Gordon & Macphail September 22, 2009 by Gary Leave a Comment Dallas Dhu 1975 / 70cl / 40% / Gordon & Macphail Single Speyside Malt Scotch Whisky. You can buy it here: Dallas Dhu 1975 / 70cl / 40% / Gordon & Macphail Or you can compare prices from a selection of suppliers here.