What is the significance of the folding patterns on the Shroud?
John Jackson, a physicist from Colorado, found several folding creases on the Shroud when he examined it in 1978 with raking light. Some of the creases were particularly distinct and ran across the width of the cloth. If you follow the this-way and that-way of the creases Jackson found: 1) first folding the cloth in half where the heads of the two body images almost meet in such a way that the two body images are on the outside and visible and then 2) folding the cloth following the direction of the other fold marks, you end up with a folded cloth that is eight layers thick. It is a stack of cloth approximately 3½ feet wide and 1¾ feet high.
The face from the frontal body image, and only the face, is centered right in the middle of the stack of cloth. It looks like a facial portrait. But most facial portraits are not found in landscape orientations, that is, on a surface that is seemingly twice as wide as it is tall. If you study the archives of facial portraits from antiquity to the present, you will find that almost all them are on backgrounds that are taller than wide.
There is significant historical evidence that links this folding pattern
to history. See: What is a tetradiplon
and why is that important?