is a kata

Kata

is a Japanese word describing detailed choreographed patterns of movements practised either solo or in pairs. The term form is used for the corresponding concept in non-Japanese martial arts in general....

 (a set of prearranged techniques) in Judo

Judo

is a modern martial art and combat sport created in Japan in 1882 by Jigoro Kano. Its most prominent feature is its competitive element, where the object is to either throw or takedown one's opponent to the ground, immobilize or otherwise subdue one's opponent with a grappling maneuver, or force an...

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It is also known as Kito-ryu no Kata. It consists of 21 techniques originally belonging to the Kito School

Kito-ryu

is a traditional school of the Japanese martial art of jujutsu. Its syllabus comprises atemi-waza , nage-waza , kansetsu-waza and shime-waza...

 of jujutsu

Jujutsu

Jujutsu , also known as jujitsu, ju-jitsu, or Japanese jiu-jitsu, is a Japanese martial art and a method of close combat for defeating an armed and armored opponent in which one uses no weapon, or only a short weapon....

. Jigoro Kano revised the techniques and incorporated them into a kata in order to preserve the historical source of judo.

Although koshiki-no-kata is not often seen in the United States, it is still taught and practiced in Japan. Some striking demonstrations of it from the 1950s can be seen in the film "Classic Judo Kata," by Hal Sharp.
If the description of the kata in that film is correct, it would be the only judo kata that involves attacking the cervical spine.

Video of Koshiki-no-kata

• Koshiki no kata - Video of Jigoro Kano and Yamashita Yoshiaki
  Yamashita Yoshiaki
  Yamashita Yoshitsugu , was the first person to have been awarded 10th degree red belt rank in Kodokan judo. He was also a pioneer of judo in the United States....
  
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• Longer demonstration of Koshiki-no-kata. No audio.