This is the Third and Final Recreated Order of the Trapezoid Medallion based on the original magical medallion worn by Dr. Anton Szandor LaVey in the early days of the Church of Satan.
Dr. LaVey himself wrote about the power of the trapezoid to bend time, space and consciousness toward paths of nightmares and Hellish revelation.
You can read more about the Order of the Trapezoid on the Church of Satan Website.