准下士
During the 18th century corporals might indicate their ranks with a shoulder knot and, later, an epaulette. Sergeants had clothing that was of slightly better quality, wore a sash, and had lace trim on their hats and uniforms. The chevrons worn by many non-commissioned officers are based on heraldic devices and their current use for NCOs originates from the time of the Napoleonic Wars in 1802. As today, sergeants wore three chevrons, point downwards, on the upper arm, and corporals wore two, with sergeant-majors and quarter-master-sergeants then having four. Lance corporal, at the time not a rank but an appointment historically known as "chosen man" and carrying extra pay for privates holding it, were given a single chevron a few years later, and later in the century the lance-sergeant appeared, wearing three chevrons. The infantry rank of colour sergeant was created in 1813 as a reward for senior sergeants with one allowed per company. He was allowed to wear a badge consisting of a regimental colour supported by two crossed swords.