Each Mason in a Lodge who has a role to play in the Ritual has their own symbol or sign. The two main supporting officers have two each, and the Master three.
The Master of the Lodge sits before the Tracing Boards, which contain the plan of work for the Lodge, a position dating back to the time of operative Masons, and the directions the Apprentices and Journeymen would be given from the architectural plans held by the Master Builder.