Dovetail joint joint technique probably pre-dates written history. Some of the earliest known examples of the dovetail joint are in ancient Egyptian furniture entombed with mummies dating from First Dynasty, as well as the tombs of Chinese emperors. The dovetail design is an important method of distinguishing various periods of furniture. In Europe the dovetail joint is sometimes called a swallowtail joint, a culvertail joint, or a fantail joint. The dovetail joint is very strong because of the way the 'tails' and 'pins' are shaped. This makes it difficult to pull the joint apart and virtually impossible when glue is added. This
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