Quite an unknown sign!
It is a sign of the Bon, in the lower folk religion of the Tibetans. (This is not supposed to be an allusion.)
It is the religion of the “red hats.” They engage with magic and evil practices. They are scorned by higher spirituality.
I know this from a reliable source.
I have conversed with a Tibetan spiritual person at the border with Tibet, and he told me that a leftward-turning symbol is unfavorable and moves towards the darkness, the unconscious.
The rightward-turning, that goes with the sun, is the favorable, it is the sign of the “yellow hats,” of the Buddhist upper tier in Tibetan religion.
And you find both signs together on the throne of the Dalai Lama, which proclaims that he unites the red and yellow hats, the red and the yellow tendencies in Tibetan Buddhism, and sort of holds both ends in his hands: the path into darkness, the “path of the left hand,” and the “path of the right hand,” namely towards the clear heights of consciousness. ~Carl Jung, Psychology Yoga Meditation, Page 275-276
E.S. adds to his script:
“After the lecture C.G. explains to an audience member who asks him about the meaning of the swastika:
‘In the seat of Shiva’s throne in the temple of [ .. ] the two swastikas are engraved alongside each other in the foreground, clockwise, spiritual; counterclockwise; earthly, going into the ground, unspiritual.'” ~Carl Jung, Psychology Yoga Meditation, Page 60, fn 219