An invitational body composed of highly dedicated and long serving York Rite Masons. Membership requires affiliation with the Knights Templar, and members must be Past Eminent Preceptor of a Knight Templar Preceptory. Originally, this body conferred 33 degrees, but now only one is conferred. Membership is limited to 27 members per presiding body. The presiding body is a Tabernacle, and the presiding officer is a Preceptor (titled Eminent).