The ancient "spiral" symbol is all over Scotland since neolithic times. It's been copped by pedophiles, but who knows why.
the direction of Celtic spirals is all-important. If they are clockwise, they are associated with harmony on Earth and the sun. If they are anti-clockwise, they relate to Pagan spells that manipulate nature. There is also a "triple" spiral version.
The stone "balls" are the most intriguing to me … would love to know what they were used for … still a mystery though, but that the "spiral" is one of the many configurations tells me it was part of some larger scope than just a simple singular design.
https://www.celtic-weddingrings.com/celtic-symbols
https://www.ancient-origins.net/artifacts-ancient-technology/geometric-stone-spheres-scotland-part-1-more-projectile-what-possible-021574