Rangabzeichen mit Dekoration zweier Kraniche inmitten von Wolken

Also known as a rank badge, was a large embroidered badge sewn onto the surcoat of officials in Imperial China (decorating hanfu and qizhuang), Korea (decorating the gwanbok of the Joseon dynasty), in Vietnam, and the Ryukyu Kingdom. It was embroidered with detailed, colourful animal or bird insignia indicating the rank of the official wearing it. Despite its name, the mandarin square (buzi) falls into two categories: round buzi and square buzi.  Clothing decorated with buzi is known as bufu in China. In the 21st century, the use of buzi on hanfu was revived following the Hanfu movement.

Damasks are woven by periodically reversing the action of the warp and weft threads. The pattern is most commonly created with a warp-faced satin weave and the ground with a weft-faced or sateen weave. Fabrics used to create damasks include silk, wool, linen, cotton, and synthetic fibers, but damask is best shown in cotton and linen. Over time, damask has become a broader term for woven fabrics with a reversible pattern, not just silks. There are a few types of damask: true, single, compound, and twill. True damask is made entirely of silk. Single damask has only one set of warps and wefts and thus is made of up to two colors. Compound damask has more than one set of warps and wefts and can include more than two colors. Twill damasks include a twill-woven ground or pattern.

• Civil-Official Hyungbae (Rank Badge) | Joseon dynasty (1392–1910)