13th Degree – Apron

The apron is of crimson velvet. Upon it is embroidered a triangle emitting rays, and in the middle a letter, an archaic form of the Semitic Yod. The color denotes the zeal and devotedness of a Royal Arch Mason. The triangle is the emblem of Deity, or Infinite Wisdom, Infinite Power and Infinite Harmony; the letter represents the Tetragrammaton, the Name of God made known to Moses.