Tracing boards are used by Freemasons in their lodge meetings as visual aids in their ceremonies, and there is usually a tracing board for each of the three ceremonies. This example is painted on wood, although they can also be painted or drawn on cloth or paper, or made out of stone. The three columns are the classical orders of architecture: Doric, Ionic and Corinthian, which represent the Master, or Ruler, of the lodge and his two deputies, or wardens. The letter at the base of each column represents their attributes: the Master’s wisdom, the Senior Warden’s strength and the Junior Warden’s beauty. There are also a number of Masonic symbols, including the set square, level, plumb rule and maul. Freemasons make symbolic use of stonemasons’ tools in their ceremonies and they are often referred to as ‘working tools’.