Excerpt from The Priscilla Hardanger Book: A Collection of Beautiful Designs in Hardanger Embroidery; With Lessons and Stitches As the square is the principle upon which Hardanger embroidery is based, any fabric woven with a square mesh so that warp and filling are the same size may be used. When the threads are drawn, a per feet square must always result. Hardanger canvas, manufactured especially for the purpose, is most commonly used, and...