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 75
Apron—Triangular, of white lambskin, lined, bor-dered, and trimmed with bright crimson; on the flap isan equilateral triangle ; in the angle of the apex, the let-ter B Q), and in the one on the left, N Q) ; in theright, Sh (£J) ; on the centre of the area of the apron, Ih (IT). Collar—White,…