Traditional patchwork patterns often are based on
four-way mirror image symmetry.
That repetitive pattern within the block is very appealing.
Symmetry within the set adds to the characteristic look.
Symmetry was refreshing in the 1970s
after decades of asymmetric modernism.
German page design from 1928
Suprematist Painting: Eight Red Rectangles,
Jackson Pollock, Stenographic Figure, 1942
Museum of Modern Art
The downside: So much symmetry can be static
or boring (do note flipped fan at top right.)
One reason these early 20th-century quilts
are so intriguing.