This group’s buildings contain three “immovable” and three “movable” jewels, such as the emblem-decorated “trestle-board.” Confederate general Albert Pike collected essays about this group into a book about the Morals and Dogma of one of its Rites. Albert Mackey documented twenty-five “landmarks” of this group, including their separation into three “degrees” (10[1])and their belief in a subordinate of Solomon named Hiram Abiff. (10[1])The letter “G” (10[2])is sometimes placed in the center of the “square and compasses” (10[1])symbol (10[1])used by this group. (10[1])This group’s “operative” origins gave way to a “speculative” (10[1])focus on symbols such as the Eye of Providence. (10[1])A (10[1])“Grand Master” oversees meetings for members of this group at “Grand Lodges.” For 10 points, name this fraternal organization originating from guilds of stoneworkers. ■END■