These quilts either repeat a traditional quilt in silk (Mennonite Bow Tie, Red Pickle Dish) or incorporate a traditional block in a novel way with respect to design and colour.
Optical illusion quilts have been around for at least a century and a half but have a high impact modern look.
Like many of the Tradition-Based quilts, some Optical Illusion pieces use a diagonal element to attain cohesiveness.