What is Origami in Japanese Katana terminology?

"Origami" (折紙) primarily refers to the appraisal documents issued during the Edo period. In the context of swords and other bladed weapons, these documents were issued by the Hon'ami family (本阿弥家). For metalwork, the documents were issued by the Goto family.

These appraisal documents served as official certificates of authenticity and quality for swords and metalwork. They provided detailed information about the item, including its origin, craftsmanship, and value. This practice played a crucial role in the preservation and appreciation of Japanese art and craftsmanship. It ensured that valuable information about these items was recorded and passed down through generations.

The term ""Origami"" comes from the practice of writing on one side of a piece of paper and then folding it in half. This not only protected the written information but also gave the document a formal and official appearance.

The Hon'ami family, known for their expertise in sword appraisal, and the Goto family, renowned for their metalwork, were trusted authorities in their respective fields. The documents they issued were highly regarded and served as a definitive guide for collectors and enthusiasts.