Another of our traditionally styled whiskey glasses, the Cathedral old-fashioned is a 10oz whiskey glass. Heritage Irish Crystal is made using only the finest raw materials, and each piece is hand-made in Waterford City, Ireland. The artists at Heritage Irish Crystal are dedicated to honoring the same mouth-blown and hand-cut techniques that were used in Ireland in the 17th century. Each piece has been decorated using diamond-tipped wheels and carefully polished to guarantee continued brilliance.