Dovetail joint box work. It offers the strength found in the dovetail joint but is totally hidden from both outside faces by forming the outer edge to meet at a 45-degree angle while hiding the dovetails internally within the joint. The mitred corner dovetail joint is very similar in design, but it has just a single dovetail and is used for picture frames and other similar joins. The secret double-lapped dovetail is similar to the secret mitred dovetail, but presents a very thin section of end grain on one edge of the joint. Used for carcass and box construction to hide the
Mitre including abbots. It substituted for the helm of military arms, but also appeared as a crest placed atop a helmet, as was common in German heraldry. In the Anglican Churches, the mitre is still placed above the arms of bishops instead of the ecclesiastical hat. In the Roman Catholic Church, the use of the mitre above the shield on the personal arms of clergy was suppressed in 1969, and is now found only on some corporate arms, like those of dioceses. Previously, the mitre was often included under the hat, and even in the arms of a cardinal, the mitre