Gishiki Bocho is for the knife to ceremonies for Inperial Court or Shinto Shrine to fillet fish without touching the fish with hands. Using just the knife and silver chopsticks. It needs high skill of knife handling and culinary art knowledge to be the person. Gishiki Bocho is sometimes called Shiki Bocho as abbreviation form. It has been history to be used the knife for over 350 years in Japan.