Menukishi: The Specialized Metalworking Craftsmen Who Create Decorative Handle Ornaments for Japanese Swords

What Kind of Craftsperson is a Menuki-Shi

A menuki-shi is a metal craftsperson who specializes in creating menuki – the metal fittings attached to the hilt (tsuka) of a Japanese sword. Menuki are small metal ornaments attached to both sides of the hilt, made using materials such as copper, shakudo, gold, and silver, and feature sculptures with diverse subjects including plants, animals, mythology, and weapons. Among sword fittings (tousougu), menuki are particularly visible and were highly prized as items that directly expressed the samurai's tastes, culture, and social status.

Menuki are often positioned where the fingers grip the hilt, and thus serve not merely as decoration but also affect the feel of the grip. For this reason, menuki-shi needed not only the conceptual ability to develop pictorial designs but also the technical skill to ensure that the height of the carving and the finishing of the edges did not compromise the actual feel of the grip.

Function and Structure of Menuki

Menuki serve both decorative and practical roles.

Practical function: The hilt is made by hollowing out wood (most commonly Magnolia) and inserting the tang (nakago). A small peg called a mekugi – made of bamboo or horn – is inserted into the wooden hilt to secure the tang. It is believed that menuki originally served as metal fittings to decorate and reinforce the head of this mekugi (or the area around the mekugi hole).

Decorative function: In practical terms, a single mekugi provides sufficient holding power, but as the samurai's aesthetic sensibilities developed, menuki took on increasing importance as pure works of craft and personal adornment. Particularly during the Edo period (an era of peace), a culture developed in which swords were treated as instruments of ritual and social status rather than for actual combat, leading to the refinement and artistic elaboration of menuki.

Menuki as Part of the Mishoomono

Menuki are sometimes created as a unified set with the kogai – a pin-like ornament attached to the hilt – and the kozuka – a small blade stored in the scabbard – with matching designs across all three pieces. These three items together are called the mishoomono. Sets of mishoomono featuring the same subject matter and created by the same craftsperson were highly valued from ancient times as they imparted a sense of visual unity to the hilt area and the scabbard as a whole. It is believed that most menuki-shi were involved in designing not just the menuki itself but the complete ensemble including the kogai and kozuka.

Major Schools and History of Menuki-Shi

Within the world of sword fitting metalwork, including menuki-shi, many schools were established during the Edo period.

The Goto School: Founded by Goto Yujou (1440–1512) in the late Muromachi period. As a prestigious school commissioned by the shogunal family and feudal lords, the "Goto carving" technique – featuring high-relief gold work on a black lacquer ground – received the highest acclaim in menuki, kozuka, and kogai. The Goto family continued as official metalworkers for the Edo shogunate through successive generations, and works bearing their signature remain highly valued today.

Menuki-Shi from the Namban Tsubagumi Lineage: Some metalworkers of the Momoyama period adopted namban designs (Western motifs) that arrived from the West, and menuki incorporating namban-style exotic themes began to appear.

The Three Great Menuki-Shi of Edo: In the later Edo period, renowned menuki-shi from various regions established their own schools and styles, which were distinguished by designations such as "○○ carving." While inheriting the artistic legacy of the Momoyama period, designs became increasingly free and playful.

Such stylistic differences often appear in the choice of base metal, the depth of carving, and the treatment of contours, even when handling the same subject matter, and these are considered important clues when comparing surviving pieces.

Technical System of Menuki Production

The primary materials and techniques employed by menuki-shi are as follows.

Materials:

• Shakudo: An alloy of copper with a small amount of gold, which develops into a deep black color similar to black lacquer. This was the most commonly used material for Japanese sword fittings.
• Shibuichi: An alloy of copper with silver in a ratio of one-quarter silver, which develops into a grayish-blue color.
• Gold, silver, and copper: High-purity precious metals were also used directly as menuki materials.

Primary techniques:

• Takabori: A technique of carving in high relief so that the forms project three-dimensionally. This technique was frequently employed for motifs such as animals, dragons, and waves.
• Hirazougan: A technique of inlaying metals of different materials into grooves in metal. This allows for diverse color expression through combinations of gold, silver, and shakudo.
• Nunomezougan: A technique of engraving fine, cloth-like grooves into the surface and hammering in gold or silver foil. This allows for finely detailed pattern expression.
• Nikubori: A technique of carving away the substance of the material to make patterns stand out. The subtle adjustment of line thickness and depth determines the expression of the work.

The General Process of Menuki Creation

Menuki production begins with determining the subject matter and refining a preliminary drawing. Next, the base metal is selected, and the form that will become the foundation of the menuki is created from plate or solid material. The burin (tagane) is then used to apply takabori or nikubori to the base form, and if necessary, metals of different colors are inlaid through zougan techniques. Finally, coloring and finishing are performed according to the properties of the base metal, and a backing plate called tomogane is attached to the reverse side to complete the piece. Since each step of the process requires specialized skill, it is said that some workshops divided the labor among different specialists handling the preliminary drawing, carving, and finishing stages.

Design as a Pair (Ittsuui)

Menuki are always created as a "pair, front and back" (omoteura ittsuui). They are attached to the front of the hilt (the outer side when the sword is worn) and the back (the side nearest the body), and are evaluated as a set. While constituting a pair, they are not identical; the subject matter and composition are designed so that the front and back are symmetrical and complementary in relationship. For example, in a pair depicting "hawk and pine," the hawk faces left on the front and right on the back, so that when the hilt is grasped, the two create a unified visual composition.

When appreciating a pair of menuki, looking not only at a single side but considering whether front and back together complete a single narrative or scene makes the intended meaning of the design easier to understand.

Menuki-Shi in the Modern Era

In modern Japan, craftspeople who work full-time exclusively as menuki-shi are extremely rare. The typical pattern is for metalworkers who handle sword fittings in general to also produce menuki. Within the Agency for Cultural Affairs' systems of designation as "intangible cultural property" or "certified traditional craftsperson," sword fitting metalwork is designated for protection, yet the shortage of successors remains a serious issue. On the other hand, a strong market for collecting and appreciating traditional menuki exists both within Japan and internationally, with masterpieces from the Edo period commanding high prices at international auctions. The techniques of menuki-shi represent one of the most concentrated expressions of the Japanese aesthetic sensibility and artisan spirit housed within a small metal object.

How to Appreciate Menuki – Fundamentals of Connoisseurship

When appreciating menuki, the eye is naturally drawn first to the subject matter and composition, but the texture of the base metal and the sharpness of the carved lines are equally important clues. In the case of shakudo, one should observe whether the deep black color resembling lacquer is developed uniformly, and in takabori, whether the outlines of three-dimensional areas are maintained sharply without becoming soft. The condition of such details is both a point of interest in the work and a measure for assessing preservation state. When a signature is present, appreciating it as part of the overall design of the piece, including the position and method of engraving of the signature, is recommended.

Practical Points for Selecting and Owning Menuki

As a metal craft object, menuki's condition readily changes depending on how it is handled. The black color of shakudo is not natural oxidation but rather the result of coloration, so rubbing vigorously with polishing compounds or a hard cloth when removing dirt can damage the color itself. When handling, the natural oils from the skin readily adhere to the metal surface, so it is advisable to handle the object through a dry, soft cloth. For storage, in humid environments green patina (rokushou) or discoloration readily develops, so the standard practice is to keep the piece in a dry environment in a container with good ventilation, such as a paulownia wood box.

When purchasing and owning menuki, like sword blades, appraisal documents for sword fittings may be issued by appraisal organizations, and checking at the time of purchase whether such documentation is present and what the document records regarding period and attribution serves as a practical guideline. Additionally, whether the piece is a single menuki or part of a complete set including kogai and kozuka (a mishoomono) significantly affects the basis of evaluation, so it is advisable to confirm the composition before purchase.