The Transfer of Artistic Intent Between Swordsmith and Polisher: The Philosophy of Finishing Communicated After Forging and the Reality of Collaborative Creation

The Sword Is Not Solely the Work of the Swordsmith

A Japanese sword is not complete merely by being forged by the swordsmith. Only when the blade, after heat treatment, passes into the hands of the polisher (togishi) does it acquire its "visible form." This is because polishing reveals the skin of the jigane, the radiance of the hamon, the utsuri, the nie, and the nioi. The specific process of final polishing is detailed in Hadori and Nugui: Final Polish Togishi Technique.

In other words, the completed Japanese sword is the result of collaborative work between the swordsmith and the polisher. However, as independent craftspeople working in separate workshops, they have limited opportunities to communicate their intentions about "what kind of sword should the final result be." This "transfer of intention" is both the key to creating masterpiece swords and the most delicate process that can lead to failure.

Information the Swordsmith Should Convey to the Polisher

In typical commissions, the swordsmith often simply hands over the blade to the polisher and that's the end of it. However, experienced swordsmiths prepare a "transfer of intention document" for the polisher. The content primarily covers the following points.

• Where to Look in the Jigane: Where do this blade's jigane characteristics lie? Which pattern is dominant—itame, mokume, masame, or ayasugi? Is the appearance of utsuri expected? If there is dense nie-ashi around the hamachi, they are asked to emphasize polishing that area——and other specific instructions.
• Priority Areas of the Hamon: The hamon is often not uniform across the entire blade. For example, if there are abundant crumbling choushi patterns near the base (root side of the blade) and the point (kissaki side) is closer to a straight hamon, the polisher must adjust the polishing technique for each area accordingly.
• Overall Direction: It is important to communicate the conceptual direction in words, such as "please bring out the masculine roughness of a practical warrior's blade" or "please foreground the quiet utsuri and prioritize aesthetic beauty." If the polisher finishes the blade independently without clear verbal communication, the result will differ from the swordsmith's intention.

What the Polisher 'Reads' from the Sword

After receiving the transfer of intention, the polisher first performs the work of 'reading' the sword themselves. During the coarse foundation polishing with the whetstone, they examine the jigane structure, and judge the depth of the heat treatment (yaki-width), the density of the nie, the direction of the jikei, and the presence and location of the utsuri.

This 'reading' ability is a sense based on experience. An experienced polisher can judge at the moment they hold the blade to the light, "This sword is characterized by nioi-deki and should be finished closer to a straight hamon." Conversely, less experienced polishers may fail to follow the swordsmith's intention and unnecessarily remove beautiful nie.

The Philosophy of Polishing——'Draw Out' or 'Create'

The most fundamental question in the polisher's philosophy is "what does polishing do to a sword?" There are broadly two positions.

The 'Draw Out' Philosophy: The belief that the polisher's job is to draw out the beauty of the jigane and the radiance of the hamon that already exist within the blade, using the whetstone as a tool. This approach respects the fact of the swordsmith's forging and holds that the polisher should be a humble assistant. In this philosophy, it is said that "the polishing should not come to the forefront," and the goal is a transparent polished surface that leaves no whetstone marks.

The 'Express' Philosophy: The belief that while respecting the swordsmith's intention, the polisher completes the sword through their own interpretation and technique. The polisher is positioned as "the final author of the sword," engaging more actively in expression. While most traditional polisher groups adhere to the former philosophy ('draw out'), some contemporary young polishers bring their own aesthetics.

The Space for 'Dialogue' Between Swordsmith and Polisher

In recent years, spaces for regular dialogue between swordsmiths and polishers have become more common. Both meet during training and exhibition preparation processes organized by the NBTHK, and networking events for young swordsmiths and polishers have also emerged.

A contemporary swordsmith (mukansha rank) says, "Before my sword goes to an exhibition, I always speak with the polisher for an hour. I honestly tell them what kind of steel this blade's jigane is, at what temperature I quenched it, which parts turned out as intended and which didn't." The statement "The polisher designs their polishing based on this conversation. A masterpiece sword cannot be born without this dialogue" reveals the essence of their collaborative creation.

Examples of Failure——'Over-polishing' and 'Too Unclear'

When the transfer of intention is insufficient, two types of failures tend to occur.

• Over-polishing: In attempting to make the nie of the jigane stand out, excessive polishing results in losing the rough, natural texture of the jigane surface, creating an artificial glossy surface instead. This is a common failure among younger polishers, and swordsmiths sometimes say, "The toughness I was seeking has disappeared."
• Shallow Polishing (Too Unclear): The nie deep within the hamon fails to appear on the surface because the whetstone contact is insufficient, resulting in cases where exhibitions or judging panels evaluate the hamon as "dull." This is an unfortunate result where the swordsmith's rich inner qualities cannot be brought to the surface.

The relationship between sharpness and polishing angle is explained in Kissaki Angle and Polishing.

The 'Silent Contract' Preserved by Tradition

How did historical polishers who worked on masterpiece blades receive the swordsmith's intention? While records are scarce, they shared a common philosophy: "the sword speaks." If one reads the blade itself deeply, one can understand what the swordsmith was aiming for——polishers honed their technique of listening to this 'voiceless voice.'

This spirit lives on in the present day. The silent contract exchanged between swordsmith and polisher——this is the foundation that makes the Japanese sword a truly unique 'art of collaboration' in the world.