Mason's mitre with much less waste than occurs with a common mitre joint, in which triangular sections must be removed from the ends of both joint members. The terms "back mitre" and "mason's mitre" (or "miter") are often used interchangeably, but are different types of joints, and used for different purposes. Both joints are traditionally used in stone or woodwork. Neither joint requires that one part be coped (or fit) over the other. In the back mitre, the joints follow the mitre and stile/rail joining lines. In the mason's mitre, the intersecting mouldings are carved within a single stone block or the
Mitre is ultimately based on the older καμιλαύκιον although it diverged from the secular headdress at a much later date, after it had already undergone further development. The crown form was not used by bishops until after the fall of Constantinople (1453). The Eastern mitre is made in the shape of a bulbous crown, completely enclosed, and the material is of brocade, damask or cloth of gold. It may also be embroidered, and is often richly decorated with jewels. There are normally four icons attached to the mitre (often of Christ, the Theotokos, John the Baptist and the Cross), which the