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 the end of the 18th century, due to changes in military fashion, the mitre had generally given way to the bearskin or had been replaced by the standard infantry tricorn or bicorn. The British Army made this change in 1765 and the Prussian Army in 1790. All Russian grenadiers continued however to wear mitre caps until 1805, even when on active service. The mitre in its classic metal-fronted 18th century form survived as an item of ceremonial parade dress in the Prussian "Leib-Grenadier No 1" and "1st Garde-Regiment zu Fuss" regiments, plus the Russian Pavlovskii Regiment, until World War I.