The Master’s Emblem has been called a ‘tau’, the nineteenth letter of the Greek alphabet, and similar to the letter T. Why is it inverted or upside down on the Apron? Where is a tau relevant in the ritual of regular Craft Masonry? These can’t be answered because the Master’s Emblem is not a Tau. Buy the book and find the correct answer. Visit http://www.mastersemblem.com to order the book.