 These elements were set within a grid of inlaid square designs surrounded by thousands of tiny diamonds and triangles.Most of the square designs were symmetrical with respect to rotations of 180 degrees, which allowed several basic designs to be turned and flipped to form derivative versions, adding complexity and obscuring the underlying patterns in which the basic designs had been arranged.This surprising play with symmetry indicates that the Phrygian woodworkers were clever, imaginative artisans with a pronounced mathematical orientation.