The book of the ancient and accepted Scottish rite of freemasonry : containing instructions in all the degrees from the third to the thirty-third, and last degree of the rite : together with ceremonies of inauguration ... etc. (1914)
McClenachan, Charles Thompson · New York : Macoy Pub. & Masonic Supply Co. · leaf 119
The apron is white, lined, edged and fringed withblack, and the flap black. In the middle are painted or embroidered three gates,and over each gate a head impaled on a spike. The sash is a black ribbon or sash, worn from rightto left, on the front of which are painted or embroideredthree heads.…