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 of Heracles; headdress of the Jewish high priest al. The "camelaucum" (Greek: καμιλαύκιον, "kamilaukion"), the headdress, that both the mitre and the Papal tiara stem from, was originally a cap used by officials of the Imperial Byzantine court. "The tiara [from which the mitre originates] probably developed from the Phrygian cap, or frigium, a conical cap worn in the Graeco-Roman world. In the 10th century the tiara was pictured on papal coins." Other sources claim the tiara developed the other way around, from the mitre. In the late Empire it developed into the closed type of Imperial crown used by